5 Sex 'Myths' That Are Totally True (And 4 'Facts' That Are Nonsense)

1. You Can Get Pregnant Twice

True

This seems like one of those stupid myths that goes around the internet (or about that lass who got pregnant at school), but it's actually true. It is possible (if rare) for a second child to be conceived whilst the mother is pregnant with the first in a process called superfoetation.

Back in 1960, two boys were born five minutes apart and were identified as twins, yet later testing on the thigh bones revealed the the baby born first was actually two months premature.

Another more recent case gained some media attention in 2009 when Julia Grovenburg from Arkansas found that she was pregnant with a boy and a girl conceived two weeks apart.

Another variation on the theme of multiple pregnancies, is the case of giving birth to "twins" with different fathers. This happens by a process called superfecundation, in which two eggs are released at once. Surprising as it sound, some estimates suggest that 1 in 400 sets of fraternal twins is "bipaternal."