When you breastfeed, your ovaries can stop releasing eggs, making it harder for you to get pregnant. Your periods can also stop. But, there are no guarantees that you will not get pregnant while you are nursing. The only way to make sure pregnancy does not occur is to use a method of birth control. If you want to use a birth control pill while breastfeeding, the safest type is the “mini-pill.” However, talk with your doctor or nurse about what birth control method is best for you to use while breastfeeding.