Does hormonal coil (IUS) cause irregular periods?

I’m 44 with recently diagnosed PCOS and endometriosis which is why my specialist told me to try the Mirena to lighten the lining of my uterus and help with my awful periods. I had to go off of the pill at 40 and suffered for 2 years while debating what to do. I got the mirena in at 42 and have had it 2.5 years now. I do get pelvic pain and cramping twice a month for a few days randomly and feel like I can tell which ovary is active but it is still better than dealing with the bleeding and irregular periods I had previously. My periods are non existant apart from spotting for a few days but not enough to even merit wearing a liner! Sex drive is definitely lower and dryness comes and goes as well but breasts have grown which I’m not upset about! I’m leaving it for another 2 years then will decide if I should opt for a hysterectomy.

For ages I was against using any hormonal contraception and strictly only used condoms. This was from a bad experience using the combined pill where it made me feel puffy and just not myself. After getting into a relationship I felt like condoms were working but not really what I wanted to use anymore in order to feel close to my partner. Tried to use natural cycles for a bit but ended up super paranoid all the time and doing pregnancy tests every month, I just didn’t trust it. I spoke to friends and researched loads before deciding jaydess would probably work for me. When I went to the doctors (nhs) it wasn’t offered so I had to get it prescribed and bring it with me to my appointment - not sure the reason why. The insertion was painful but the doctor I had was great with me. I took the whole day off work and felt a quite funny after but I just rested and looked after myself and was back to normal the day after. I had no bleeding or cramps after only until what came to be my period. So far I’ve found that my periods are lighter but last a long time, I think this will regulate. It’s been a bit annoying but there’s hardly any pain and slowly slowly it feels like it will get better. I’ve had it for nearly 3 months and I don’t notice it at all, my partner doesn’t and I had my check up and all was fine. I haven’t had any bad side affects so far! I would recommend to all my friends I think it’s so great to not think about or worry about pregnant while also only having a small does of localised hormone.

I got the Mirena coil fitted back in august before this I was natural and not on any form of contraception for a long time. Since I’ve had the coil fitted I’ve had constant BV (bacterial vaginosis) even the antibiotics isn’t working now, I know it’s from the coil as I didn’t have any issues until this has been fitted. I am sick of it and I’m in quite a lot of discomfort because of the infection that I’ve had for weeks, I have booked in to get this removed. After doing some further research I found that you’re at risk of getting bv when you have the hormonal coil so I guess I’m just one of the unlucky ones.