Me and my girlfriend had our first sexual experience with a proper intercourse but with no ejaculation inside her. I am sure she broke her Hymen because of the intercourse or by being fingered during foreplay and she bled quite a lot after a couple of hours of having sex.
But now the problem is that she bleeds almost everyday with no fixed intervals while she goes to the washroom, sometimes first thing in the morning or sometimes in the afternoon , and she also has some pain in her lower abdomen as well, but she says it's not like the period pains she normally has. And her periods got over a few days ago before we had sex. So I can't understand why is she bleeding (sometimes quite a lot sometimes less) even after 3 days of having sex??
Please if anyone has any suggestions or advice please do help me out with this... it would mean a lot to me.

This can be a very serious condition. She needs to visit a doctor and soon.