It's not a good idea to keep a tampon
in if you're having vaginal sex. The guy's penis may push the tampon in further, and
you might have trouble removing it afterward. So always take a tampon out before having
There is one thing you should use if you have sex during your period, though: a
condom. A girl
can still get STDs during her
period and she can still get pregnant then too. So protect yourself!