My husband and I had sex today and for the first time after we finished I started lightly bleeding? I am on birth control I was wondering do I have cancer, because my vagina has been really tight and dry lately, and when he gets inside of me it hurts.

The bleeding is likely from being very dry. You might want to try spending more time during foreplay to insure adequate arousal. Perhaps using some additional lubrication can help as well. There are several products to choose from.

If you find that these things do not change things for you, speak to your doctor and see about having a check up.

Agree, if you have a lube issue, that can easily cause some bleeding ( and pain). Also what is your ages? Is there enough foreplay to be prepared? Do you use lubes sometimes. If you were dry and not ready, why did you have sex?