I had sex in the middle of my period and after it slowed down the kept flowing for 3 days could I be pregnant?
That could be possible but, you need to be careful and protect yourself next time. Like I said, be careful. I myself don't have sex during periods since I'm a vergin.
Odds are probably not... But anything is possible (because nature is wacky that way) You really should use protection at all times. Maybe birth control too?
Anything is possible when you have unprotected sex. Always use a condom and birth control. Just to make sure I would get a test.