In some cases, women with very low body fat or who are ultra athletes do not menstruate, or do so sporadically. It's possible to become pregnant, though, and if you already aren't used to a regular period then I can see how one might not know they are pregnant.sixpackshaker said:My brother went to a small state college in Arkansas. He was close to graduating, but needed a Fitness and Health class (He played football for cripes sake). The school he was in did not have the class that semester, so he went across the street to a Baptist college to get the credit.
The guy that taught the class told a story of how his wife, also a health teacher at that college, started to gain weight. They started her on a serious diet, which did not work. Then started her on running and sit-ups to keep the mysteriously pooching belly down. Then some months later she went into labor.
TWO COLLEGE EDUCATED HEALTH PROF'S DID NOT KNOW SHE WAS PREGGERS!!!
But we bet that that baby hit the ground running.
However, in general, I approve of "female" discussions that make guys uncomfortable. It's so much fun to watch guys squirm.
-Adam