If you have enough prolactin in your system, it can stop periods and ovulation
. No guarantees, though. When you stop breastfeeding
, the prolactin flow dies down, and theoretically that is when your periods come back. However, some women who are breastfeeding do get their periods, and others don't get a period before they get pregnant again. Short answer is, don't count on breastfeeding to protect you from pregnancy.