How Soon Can You Resume Breastfeeding After Taking Emergency Contraceptive? - Obstetrics and Gynecology

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How long after taking emergency contraception can I continue breastfeeding?


Hello Dr.
Tian, I would like to ask about breastfeeding four months postpartum (almost exclusively breastfeeding).
My first menstrual period has not yet occurred, but I am concerned about the possibility of becoming pregnant again, so I would like to take emergency contraception (such as Ella or Plan B).
How long should I wait after taking it before I can continue breastfeeding? Based on the ingredients, will the high-dose progestin have any effects on my breastfed baby? Thank you for your response :)

Shuang Bao Ma, 20~29 year old female. Ask Date: 2016/01/11

Dr. Tian Yiwen reply Obstetrics and Gynecology


In general, the amount of medication that enters breast milk is very low and is unlikely to affect the baby.
However, emergency contraceptive pills contain high concentrations of hormones, and frequent use can lead to hormonal imbalances.
They should only be used as a last resort for contraception and are not recommended for regular use.

Reply Date: 2016/01/11

More Info


When considering the use of emergency contraceptive pills (ECPs) while breastfeeding, it is essential to understand both the safety of the medication and its potential effects on breast milk and the nursing infant.
Emergency contraceptive pills, such as ulipristal acetate (Ella) or levonorgestrel (Plan B), are designed to prevent pregnancy after unprotected intercourse. These medications work primarily by delaying ovulation and may also affect the uterine lining to prevent implantation. The concern for breastfeeding mothers often revolves around the timing of taking these medications and their impact on breast milk.

Research indicates that both levonorgestrel and ulipristal acetate are generally considered safe for breastfeeding mothers. The amount of the active ingredient that passes into breast milk is minimal and is unlikely to affect the nursing infant adversely. The World Health Organization (WHO) and other health authorities have stated that breastfeeding can continue after taking ECPs without significant risk to the infant.

In terms of timing, it is recommended that breastfeeding mothers can continue to breastfeed immediately after taking emergency contraceptive pills. However, if you are concerned about the medication's presence in your breast milk, you might consider pumping and discarding the milk for a short period after taking the ECP. This practice is known as "pump and dump," although it is not strictly necessary due to the low levels of the medication in breast milk.

Regarding the specific question about how long to wait after taking emergency contraception before resuming breastfeeding, there is no strict guideline that mandates a waiting period. Most experts agree that it is safe to continue breastfeeding right after taking the pill. If you choose to pump and discard milk, a common recommendation is to wait about 6 hours after taking the ECP before resuming breastfeeding. This timeframe allows for the medication to be metabolized further, reducing any potential exposure to the infant.

It is also important to note that while ECPs are effective in preventing pregnancy, they are not intended for regular contraceptive use. If you find yourself needing emergency contraception frequently, it may be beneficial to discuss long-term contraceptive options with your healthcare provider. There are various methods available that are safe for breastfeeding mothers, including progestin-only pills, intrauterine devices (IUDs), and implants.

In conclusion, if you are a breastfeeding mother who has taken emergency contraception, you can safely continue breastfeeding immediately. If you have concerns about the medication's effects on your baby, consider pumping and discarding milk for a few hours, but this is generally not necessary. Always consult with your healthcare provider for personalized advice and to discuss suitable contraceptive options that align with your breastfeeding goals.

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