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Lactational Amenorrhea Method (LAM)

Lactational Amenorrhea Method (LAM) involves breastfeeding when all the criteria are met below.

We are aware that some mothers may be concerned about starting contraception in the first 6 weeks after the birth of their baby and the aim of this information is to help you make the decision that is right for you.

Exclusive breastfeeding means that the baby is only having their mother's own breastmilk, no supplements with formula milk, donor milk, or any water or solid foods.

When a mother is exclusively breastfeeding her baby and the baby is feeding frequently, the levels of the hormone prolactin will stay high enough to stop ovulation from happening.

If you are breast feeding your baby, the available evidence indicates that progestogen-only methods of contraception (Intra-uterine hormonal coil, Implant, Injection, and pill) have no adverse effects on lactation, infant growth, or development.

Women who breastfeed and experience a bleed in the first 6 months after childbirth have been shown to have a higher risk of pregnancy.

If used correctly, lactational amenorrhea method is 99% effective. This means that 2 women in 100 who use breast-feeding will become pregnant in a year. 

Therefore, for breastfeeding to be used as an effective contraceptive method it is recommended that all three of these criteria are met.

  • Exclusive breastfeeding day and night. 
  • No long intervals between feeds. This means no more than 4 hours during day or 6 hours at night.
  • No periods or bleeds.
  • Baby less than 6 months old.

If you breastfeed you should wait until 6 weeks after the birth of your baby before starting to use any method of combined hormonal contraception.

If breastfeeding reduces or other LAM criteria is no longer being fulfilled as above, please speak to your GP, or local sexual and reproductive healthcare services to move onto another contraceptive method of your choice.