Short period comets that originate beyond the orbit of Neptune but are generally moving level with the orbits of the other planets are in the what?
No! You can get pregnant before you have your first period, and many surprise pregnancies happen just that way. To prevent pregnancy after you have your baby, you'll have to use birth control every time â even if you're breastfeeding.
During pregnancy, your body temporarily halts ovulation and stops shedding the lining of the uterus. As a result, you don't have your period. After the baby is born, the body's natural cycle of ovulation returns, and your period returns as well.