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.
Doctors and midwives start counting pregnancy from the first day of your last menstrual period (LMP) even though, of course, you weren't pregnant then. The first day of your LMP is typically about two weeks before you ovulated and conceived your baby.