Although the pain you are experiencing could be normal, it is possible there is another reason for the pain. If the pain is so intense that sex is essentially rendered physically impossible and that happens several times, or it is so painful that you don't want to try again, I would suggest seeing your gynecologist. There are physical conditions that can make sex painful and virtually impossible. However, they CAN be corrected with the help of your doctor. So if the advice the others have given you doesn't help, see your doctor. You might be surprised.