Well, many girls hymens break during intercourse and this will cause a small amount of bleeding. Your hymen may have torn a little bit each time you've had sex so far, and it may be completely gone now or it may still have a little tearing to do. Different girls have different hymen thicknesses and some girls' hymens break long before they have sex (from masturbation, exercise, tampons, etc.), so some girls don't bleed at all and others bleed varying amounts.

If the pain or bleeding was not from the entrance of your vagina, but you felt a pain inside and noticed no tearing on the outer part of your vagina, it is marginally possible that you tore a part of the vaginal lining or hit the uterus. I would doubt that was the case, though, from your description.

My guess is that what you are experiencing is normal. However, if you are still in pain or are worried, get to a doctor. No one here is a doctor, so no one here can give you the sound kind of medical advice that a doctor would be able to provide.

I hope this helped, and I wish you the best of luck!

Have you been using adequate birth control? If the condoms didn't break, you probably don't have anything to be worried about. It's also important to remember that stress, diet, and any number of things can throw off a girls period. If you're really concerned, go get a pregnancy test.

In the future, I'd recommend a backup form of birth control, such as the Pill and a condom, so that you don't have to worry so much, and just to be safe.