the vagina bleeds after intercourse due to many reasons.
here are some
1. just had a period in the last 2 or so days.
2. further tearing of the hymen which might not have been deflowered properly
3. tearing of the vaginal wall due to friction and low amount of vaginal fluid
hope it helps
It can be if youre new to sex. Your tissues are sensitive and fragile down there and aren't used to the friction that happens during intercourse. If this is your first time having sex, your tissues will soon get used to it and you should stop bleeding. But if it hurts during sex, make sure to tell the guy to slow down a little bit so he doesn't hurt you. So the answer is yes, this is completely normal. Good luck and best wishes! :)
Sara RN