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.
BUT no you don't have to. As we women know fertilization takes place as the egg travels from the ovary. And your period doesn't start if itt attaches itself in the uterus. And so for you to get pregnant WITHOUT a period it would have to happen hours before your first period would have started.