Breastfeeding (Lactational Amenorrhea Method (LAM))

Research shows when your baby is under 6 months old, you are exclusively breastfeeding day and night, and not having periods, the Lactational Amenorrhoea Method is around 98% effective. This is similar to some of the most effective hormonal and non-hormonal methods. However if any of the these conditions change, then you may be at risk of pregnancy and should not rely on breastfeeding as contraception.

If your baby is under 6 months old, you are exclusively breastfeeding day and night, and not having periods, you can rely on breastfeeding (aka the lactational amenorrhoea method) for contraception. If any of these conditions change, for example your baby starts to sleep through the night which reduces feeding time, or you express milk, you will need to use another form of reliable contraception.

Hormonal changes associated with breastfeeding can mean you do not have periods whilst breastfeeding, however research shows this can only be used as reliable contraception during the first 6 months after giving birth.

LAM is a form of natural contraception and allows you to take advantage of your body's natural hormonal response to breastfeeding to prevent pregnancy. If all conditions are met you do not need to use another form of contraception until this changes.

You can starting using the lactational amenorrhea method as soon as your baby is born either until they are 6 months old, or you have your first period post-birth. It is important that you do not express milk or feed your baby other foods during this time as this may reduce your lactation which can impact on ovulation. To ensure the method is effective, you must feed at least every 4 hours during the day and every 6 hours at night.

There are no medical risks when using the lactational amenorrhea method. The only thing that can go wrong is that it can lead to an unexpected pregnancy. You are not protected from STIs when you use this method.