Most trials did not report significant differences between the study arms in breastfeeding duration, breast milk composition, or infant growth. Older studies often lacked quantified results. We found two trials of progestin-only pills (POPs) and two of the etonogestrel-releasing implant. Four trials examined combined oral contraceptives (COCs), and three studied a levonorgestrel-releasing intrauterine system (LNG-IUS). Five reports were published before 1985 and six from 2005 to 2014. In 2014, we added seven trials for a new total of 11. The results of better quality showed little effect on breastfeeding or infant growth. The data were of moderate quality overall. Results were not consistent across all trials. We found little information on any specific birth control method, with usually two studies per method. The other showed lower volume for combined pill users than for women taking pills with only progestin. Two trials noted that a combined pill had a negative effect on breast milk volume or content. In one study, the implant group infants gained more weight than those in the no-method group but less weight than infants in the 'Depo' group. One was a combined pill with few results and the other a hormonal IUD. Two of eight trials noted less breastfeeding among women using hormonal birth control. Most trials showed no major difference due to hormonal birth control use. Some older reports did not have much data. These trials looked at many methods: pills, an implant, the injectable 'Depo,' and a hormonal intrauterine device (IUD). We included 11 studies with a total of 1482 women. For the initial review, we wrote to researchers to find other studies. We also looked at reference lists to find trials. These trials compared hormonal methods to other hormonal methods or to placebo ('dummy' method). We ran computer searches for randomized trials of birth control used during breastfeeding until 2 March 2015. We looked at whether combined birth control or methods with only progestin affect breastfeeding more than other methods. Other types of birth control contain only progestin or no hormones. When monthly cycles return is uncertain, and the woman could get pregnant again.Ĭombined birth control methods contain the hormones estrogen and progestin. Identifying the best time to start birth control is also important.
![non hormonal birth control non hormonal birth control](https://i.dailymail.co.uk/1s/2020/05/23/15/28739818-0-image-a-9_1590244761524.jpg)
Ideally, the birth control would not affect the type or amount of breast milk or the baby's growth. Some worry that hormones could affect the breast milk and therefore the baby's growth. Researchers and health care providers debate these issues. The decision includes the birth control type and when to start using it. Each year, millions of women decide whether to use birth control after having a baby. Delaying the next pregnancy improves the health of women and children.
![non hormonal birth control non hormonal birth control](https://www.std-gov.org/blog/wp-content/uploads/non-hormonal-birth-control-2-768x512.jpg)
Birth control for women who are breastfeeding is important worldwide.