You probably have the pregnancy basics down. You know what to eat, you know what vitamins to take and you know what to avoid. But, we can guarantee you, there are some wacky facts you haven't yet heard.
For example, did you know the average length of a pregnancy is 280 days but there are cases of pregnancy lasting over a year?! Or, that a pair of twins can come from two seaprate fathers? Yes, it's true! It happened in 2009!
Learn more quirky facts including what country has the highest incidence of twin births in the BuzzFeed Video made for Fit Pregnancy.