10 dumb mistakes that can get her pregnant.. [Read]

1. The Mistake: You  think having sex standing up prevents pregnancy.

The Potential Damage: We couldn’t believe that nearly 1 in 5 of men buy into this, but according to a 2010 study, it’s true. Yikes. “The law of gravity is not a contraceptive,” says Debby Herbenick, PhD, the co-director of The Center for Sexual Health Promotion. That’s a seemingly obvious assessment, right? Use it.