Hormonal coil (IUS) vs Fertility awareness methods (FAM)

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Hormonal coil (IUS)

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Fertility awareness methods (FAM)

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Overview

Rated 3.5

793 reviews

Every 3-8 years

Frequency

Over 99%

Effectiveness

None

Blood clot risk

None

Effect on fertility

Rated 4.3

155 reviews

Daily

Frequency

92% - 98%

Effectiveness

None

Blood clot risk

None

Effect on fertility

Hormonal coil (IUS) ingredients

Main hormones in Hormonal coil (IUS)

progestogen

Fertility awareness methods (FAM) ingredients

Fertility awareness methods is an umbrella term for a method of contraception that works by being able to identify when in the menstrual cycle you are fertile through a range of factors.

What Lowdown reviewers say

43% no impact on mood

48% stopped periods

47% no impact

59% no impact

53% no impact on skin

Cycle return

30% don’t know impact

51% very positive

63% no change

49% increased sex drive

83% no impact

61% no impact on skin

Cycle return

64% in 1 month

Benefits: What this contraceptive can help with

Adenomyosis

Endometriosis

Heavy periods

Menopause

Period pain

There are no benefits that are recognised in scientific research or guidelines for this contraceptive

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Check out our latest reviews

Real life reviews from people like you

Hormonal coil (IUS) reviews

793 reviews

Hormonal coil (IUS)  
Used for 6 - 12 mo
20 years old
🇬🇧 UK
  •  1 day ago

Mirena coil  

minimal side affects comparted to my experience on the combined pill

Read more

Worse skin

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 3 - 6 mo
44 years old
🇬🇧 UK
  •  1 week ago

Mirena coil  

I had such high hopes for the Mirena to help with my heavy periods but sadly I'm nearing the six month mark and there has been no improvement in the long term, if anything my periods are worse and I can't find any reason online as to why. I couldn't put up with the monthly flooding any longer and the NHS waiting list was at least 12 months, so I paid privately for the Mirena to be fitted. The insertion was uncomfortable but bearable (I haven't had children) and I didn't experience any discomfort immediately afterwards. The cramps during menstruation in the first two months following the fitting were intense, but the period was lighter so it still seemed like a win overall and I remained hopeful the cramps would ease as my body got used to the coil. That has happened and the cramps have eased to next to nothing now, but strangely my periods after the three month mark have been horrendous. I've been losing clots bigger than I have experienced before and I am back in incontinence pads to manage the amount of blood I lose. I can't continue to afford to access private care and I remain on the NHS waiting list, where I guess I will discuss ablation when I finally reach the top of the list. I so wish this had worked for me because it seemed an easy option and importantly it didn't end my fertility, but sadly it wasn't to be. I don't know why I'm surprised it didn't work for me, this is just my luck!! I wish it hadn't cost me hundreds of pounds to find this out, but for those it works for it seems life changing so it very much felt like an avenue worth exploring.


Top side effects not reported

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 12 - 18 mo
36 years old
🇬🇧 UK
  •  1 month ago

Mirena coil  

Insertion was fine, just like a deep period cramp but only lasted 3 seconds. I was a little cranky for the rest of the day but no more than a regular period. I did bleed and spot for 4-6 weeks after insertion and then gradually over the last 12 months my periods have become lighter and lighter and have now stopped with only the odd day of spotting . What I will say is it doesn't totally prevent pms symptoms but has massively improved mines. I had to suffer from terrible tender breasts for 14 days leading up to my period and bad bloating ! That's gone now but I do still get a little emotional round about the time I would get my period. My only negative I can say is I have gained approx 1.5 stone but I can't say for certain it's this coil. I am hoping to diet and exs in the new year and lose it. Over all this is a brilliant form of contraception for me after trying so many pills , the implant , the patch you name it. This has been by far the best one with little to no side affects. I strongly recommend it.


Gained weight

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 6 - 12 mo
20 years old
🇬🇧 UK
  •  1 day ago

Mirena coil  

minimal side affects comparted to my experience on the combined pill


Worse skin

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 3 - 6 mo
44 years old
🇬🇧 UK
  •  1 week ago

Mirena coil  

I had such high hopes for the Mirena to help with my heavy periods but sadly I'm nearing the six month mark and there has been no improvement in the long term, if anything my periods are worse and I can't find any reason online as to why. I couldn't put up with the monthly flooding any longer and the NHS waiting list was at least 12 months, so I paid privately for the Mirena to be fitted. The insertion was uncomfortable but bearable (I haven't had children) and I didn't experience any discomfort immediately afterwards. The cramps during menstruation in the first two months following the fitting were intense, but the period was lighter so it still seemed like a win overall and I remained hopeful the cramps would ease as my body got used to the coil. That has happened and the cramps have eased to next to nothing now, but strangely my periods after the three month mark have been horrendous. I've been losing clots bigger than I have experienced before and I am back in incontinence pads to manage the amount of blood I lose. I can't continue to afford to access private care and I remain on the NHS waiting list, where I guess I will discuss ablation when I finally reach the top of the list. I so wish this had worked for me because it seemed an easy option and importantly it didn't end my fertility, but sadly it wasn't to be. I don't know why I'm surprised it didn't work for me, this is just my luck!! I wish it hadn't cost me hundreds of pounds to find this out, but for those it works for it seems life changing so it very much felt like an avenue worth exploring.


Top side effects not reported

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 12 - 18 mo
36 years old
🇬🇧 UK
  •  1 month ago

Mirena coil  

Insertion was fine, just like a deep period cramp but only lasted 3 seconds. I was a little cranky for the rest of the day but no more than a regular period. I did bleed and spot for 4-6 weeks after insertion and then gradually over the last 12 months my periods have become lighter and lighter and have now stopped with only the odd day of spotting . What I will say is it doesn't totally prevent pms symptoms but has massively improved mines. I had to suffer from terrible tender breasts for 14 days leading up to my period and bad bloating ! That's gone now but I do still get a little emotional round about the time I would get my period. My only negative I can say is I have gained approx 1.5 stone but I can't say for certain it's this coil. I am hoping to diet and exs in the new year and lose it. Over all this is a brilliant form of contraception for me after trying so many pills , the implant , the patch you name it. This has been by far the best one with little to no side affects. I strongly recommend it.


Gained weight

0 helpful

0 comments


Fertility awareness methods (FAM) reviews

155 reviews

Fertility awareness methods (FAM)  
Used for 3 - 5 yr
32 years old
🇬🇧 UK
  •  3 weeks ago

Natural Cycles App  

I've had an entirely positive experience using Natural Cycles. While using the impant I was struggling with acne, mood swings, irregular periods. And since swapping to use Natural Cycles I've felt much better in myself, my periods are very regular, I feel I understand my body and cycle so much more, and my skin has cleared up. In 5 years of using it it's been 100% effective at preventing pregnancy, I'm very careful to measure consistently, and I use the Oura Ring to help get accurate readings. But this small effort seems like a small price to pay in exchange for getting rid of all the nasty side effects of my previous contraception


Very positive mood

0 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 18 mo - 3 yr
Lowdown user
🇬🇧 UK
  •  6th Jun 24

Natural Cycles App  

I started using Natural Cycles a few years back. I was never on any birth control as a teenager as my mum didn't want my young body being put on hormones. However, once I settled down with my current long-term partner, I wanted to have the peace of mind that I wasn't going to fall pregnant. The first few years of using Natural Cycles were great and empowering, understanding the changes in my body and knowing when I had ovulated was great. What I had failed to understand was it predicted with its algorithm your date of next month's ovulation based on your previous month. Well. I managed to fall pregnant not once, but twice in the space of 8 months. The first time around, I thought it was my fault and I had not taken my temps properly (even though I never had an issue in the past). I had a surgical abortion as I was 3 months pregnant before I actually found out. I was willing to try again and really get to grips with it even though the clinic was very strongly advising me to go on some form of HBC. In the past 6 months, my body has recovered from the abortion and got back into its usual swing of periods and I saw I was ovulating again. This time around I invested in an Oura ring to pair with my NC app to be certain of my temps being taken. All was well, I stuck to my green and red days religiously. I use the pull-out method on red days (if we do have sex). And I trust our pull-out method completely because we definitely know he does not ejaculate inside of me or we tend to stick to oral sex rather than penetrative. I noticed my temperatures lately had been higher than usual and my ovulation was confirmed a bit earlier than usual. I didn't think much of it as I had stuck to our red days and green days as shown. When I went on calendar view, I saw that my fertile window just gone was a lot shorter than 6 days and I had unprotected sex (on a green day) that was 2 days before I ovulated. I did a test and indeed am pregnant yet again. I contacted NC straight away and got them to go through my data, which they did and have taken full responsibility for the muck up with their algorithm. I advise you to check your fertile windows and note any other observations (cervical mucus), because the algorithm cannot be trusted. And from what I now know, ovulation may change throughout different cycles (stress, sleep etc). I will no longer be using them ever again which is sad as I did so enjoy using it.


Somewhat positive mood

2 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 18 mo - 3 yr
Lowdown user
🇬🇧 UK
  •  4th Jun 24

Natural Cycles App  

Amazing


Very positive mood

1 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 3 - 5 yr
32 years old
🇬🇧 UK
  •  3 weeks ago

Natural Cycles App  

I've had an entirely positive experience using Natural Cycles. While using the impant I was struggling with acne, mood swings, irregular periods. And since swapping to use Natural Cycles I've felt much better in myself, my periods are very regular, I feel I understand my body and cycle so much more, and my skin has cleared up. In 5 years of using it it's been 100% effective at preventing pregnancy, I'm very careful to measure consistently, and I use the Oura Ring to help get accurate readings. But this small effort seems like a small price to pay in exchange for getting rid of all the nasty side effects of my previous contraception


Very positive mood

0 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 18 mo - 3 yr
Lowdown user
🇬🇧 UK
  •  6th Jun 24

Natural Cycles App  

I started using Natural Cycles a few years back. I was never on any birth control as a teenager as my mum didn't want my young body being put on hormones. However, once I settled down with my current long-term partner, I wanted to have the peace of mind that I wasn't going to fall pregnant. The first few years of using Natural Cycles were great and empowering, understanding the changes in my body and knowing when I had ovulated was great. What I had failed to understand was it predicted with its algorithm your date of next month's ovulation based on your previous month. Well. I managed to fall pregnant not once, but twice in the space of 8 months. The first time around, I thought it was my fault and I had not taken my temps properly (even though I never had an issue in the past). I had a surgical abortion as I was 3 months pregnant before I actually found out. I was willing to try again and really get to grips with it even though the clinic was very strongly advising me to go on some form of HBC. In the past 6 months, my body has recovered from the abortion and got back into its usual swing of periods and I saw I was ovulating again. This time around I invested in an Oura ring to pair with my NC app to be certain of my temps being taken. All was well, I stuck to my green and red days religiously. I use the pull-out method on red days (if we do have sex). And I trust our pull-out method completely because we definitely know he does not ejaculate inside of me or we tend to stick to oral sex rather than penetrative. I noticed my temperatures lately had been higher than usual and my ovulation was confirmed a bit earlier than usual. I didn't think much of it as I had stuck to our red days and green days as shown. When I went on calendar view, I saw that my fertile window just gone was a lot shorter than 6 days and I had unprotected sex (on a green day) that was 2 days before I ovulated. I did a test and indeed am pregnant yet again. I contacted NC straight away and got them to go through my data, which they did and have taken full responsibility for the muck up with their algorithm. I advise you to check your fertile windows and note any other observations (cervical mucus), because the algorithm cannot be trusted. And from what I now know, ovulation may change throughout different cycles (stress, sleep etc). I will no longer be using them ever again which is sad as I did so enjoy using it.


Somewhat positive mood

2 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 18 mo - 3 yr
Lowdown user
🇬🇧 UK
  •  4th Jun 24

Natural Cycles App  

Amazing


Very positive mood

1 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 18 mo - 3 yr
Lowdown user
🇬🇧 UK
  •  20th May 24

Natural Cycles App  

First few months lots of ‘red’ days (no unprotected sex days). Coming off the pill was a personal choice and brought back lots of issues i.e needing prescription pain medication. However, my sex drive and mental health have significantly improved and impacted on my relationship. I’ve used natural cycles for 2 years religiously and no problems or pregnancy.


Very positive mood

3 more effects

1 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 6 - 12 mo
Lowdown user
🇬🇧 UK
  •  20th May 24

Natural Cycles App  

I’ve been using the Natural Cycles app with the Oura Ring for about 6 months now, and it has been the best thing I’ve ever done! No side effects and I’ve never felt so informed about my body. I love that the app also informs my partner of when green/red days begin, so the contraceptive burden is on him too (in that he doesn’t have to ask me what type of day it is - we both know, which is nice). For peace of mind, I used the Oura ring for an initial period of three months to let the Natural Cycles app gather data on my basal temperature, whilst using condoms as a contraceptive. Then, when I felt confident that the app had a few months of data (and I was familiar with my own patterns/regular cycles), my partner and I reduced condom use to red days only. We have had zero pregnancy scares in 6 months, and using this as contraception has vastly improved our sex life. I’d honestly recommend it to anyone who is looking to escape hormonal contraceptives. The Oura Ring is expensive, but there’s no way I could remember to take my temperature every morning otherwise (and no way am I setting my alarm every morning… Sundays are for sleeping in!), so I’d recommend buying one if you do plan to use this as a long-term contraceptive and don’t want to be chained to the digital thermometer/same wake-up time every day.


Very positive mood

1 more effect

0 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 5 - 8 yr
Lowdown user
🇬🇧 UK
  •  15th May 24

Natural Cycles App  

I have used Natural Cycles for years now (alongside condoms when ovulating) and love using a non-hormonal method. I used to get side effects from the combined pill and mini pill so I have seen an improvement since coming off those. The data aspect of recording your temperature and seeing the patterns of my cycle is something I find really interesting. Plus the reminders of ovulation/upcoming period/breast checks are always helpful. I know myself and my body better since tracking my cycles.


Very positive mood

0 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 3 - 6 mo
Lowdown user
🇬🇧 UK
  •  15th May 24

Symptothermal method  

The Natural Cycles algorithm does not work to accurately track ovulation and therefore prevent pregnancy. Evidence based FAM/symptothermal methods use a '2 check method' including temperature and cervical fluid patterns. Natural Cycles only tracks your body temperature. After using for a few months I noticed my safe/green days changed after the date. So I had (what I thought was) safe unprotected sex in the non-fertile window, but then by the end of that cycle those days had changed to red/not safe. Surprise surprise, I got pregnant and had to arrange a termination. Since stopping this I have started using fertility awareness methods successfully for 4+yrs. Natural Cycles is just too risky without a 2 check method, and basing it on an algorithm.


Very positive mood

1 more effect

0 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 3 - 5 yr
Lowdown user
🇬🇧 UK
  •  14th May 24

Breastfeeding (Lactational Amenorrhea Method (LAM))  

I loved using Natural Cycles as it let my body just be itself. It was very effective for four and a half years…until I unexpectedly got pregnant! I will fully admit though we would occasionally take risks on early red days, and we know where we went wrong the month I became pregnant (travelling with time and environment changes led to confusing temperature readings coupled with not using enough caution). The only downsides of NC for me were needing to be on a predictable routine for morning thermometer readings (may be challenging for those travelling a lot or on shift work) and we had to use condoms or abstain during ovulation - which is of course the peak time for when you want some action! Overall though I would recommend it and will probably resume using it once our sleep schedule normalises with our beloved new baby. Having been on the pill and using a copper iud for years, it’s just hard to beat having zero side effects and letting your body do its own thing.


Very positive mood

0 helpful

1 comments

Fertility awareness methods (FAM)  
Used for 3 - 5 yr
Lowdown user
🇬🇧 UK
  •  9th May 24

Natural Cycles App  

Absolutely brilliant - after being on hormonal contraception this has been like a breath of fresh air. Natural cycles works so brilliant for me and I’ve never felt so in touch with my body and emotions. Genuinely lifechanging - if the you meet the criteria for this (regular periods, fairly routine lifestyle) then I could not recommend it more.


Very positive mood

0 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 3 - 6 mo
Lowdown user
🇬🇧 UK
  •  22nd Feb 24

Natural Cycles App  

I didn't really do this properly and only used it here and there! So I am definitely not an expert on this, but if you have regular periods and are organised I can see why this may be beneficial! Especially as no hormones


Top side effects not reported

0 helpful

0 comments

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