Tried it a few times, but was not able to do so. It was like a brick wall. Was able to get a finger it, but she said that even that hurt. She told me that she had some accidents as a child and was told that this would hurt when she was older. We are both in our early twenties. We did foreplay and kept doing foreplay to try and get it to to work but nothing. As I said the most I could get in was a finger. Could it have been nerves or should we see a doctor? Any advice would be helpful.

If there was physical damage as a child I would suggest she talk to her OB/Gyn. The doctor can advise whether surgery is necessary or non surgical methods will help.

So many issues, first yes it hurts, did she get lubricated well ?

But yes have her to and be examined by a doctor

We did foreplay for about a hour and she was very wet. Just seemed to be like trying to break a brick wall and she said there was pain. Also it was our first time and so we both were nervous. I didn't want to hurt her and so eventually gave up. The whole thing lasted two hours with me trying to keep her wet, relaxed, and in the mood.