What age can you get pregnant? A female can get pregnant and have a baby as soon as she begins to ovulate. That means producing eggs. This usually happens about a year after they first begin to have their period, or menstruating. The age varies based on your genetics. For girls in North America, this usually happens between the ages of 11 and 12. Some start ovulating later, … [Read more...] about How old do you need to be to get pregnant?