Hi,
Me and my boyfriend have been trying to have sex for a half year now.Whenever he tries to penetrate it hurts so much ,I just can't stand the pain .My vagina seems to close or something like that every single time.We thought I have vaginismus so he started fingering me and I started to use tampons so the muscles get used to the feeling.Now I can insert super tampon and he can insert his two fingers with a little pain but we still can't have sex.What is the problem ?

Have you asked your gynecologist yet? I suggest you do and eliminate other possibilities first.

Also is there enough fore play and how old are both of you.

You should spent more time in foreplay

I am 18 and he's 20 years old.I asked my gyn and she suggested me to try with lubricants and longer forplay ,we tried everything but nothing works unfortunately :S

You might think about trying a vibrator for play and stretching.

You might not be as relaxed and comfortable about having sex as you think you are. If you have any concerns about interruptions, pregnancy, the pain, etc. your body may not relax enough for sex because part of your mind is holding back.

Make certain his hands are clean before he tries using fingers. Especially if he smokes, there could be substances on his hands that might be causing a very mild reaction.

Foreplay is not just his hands on your body. Arousal is not as much a physical condition for most females as it is mental. If your mind isn't in it and wanting it, then your body won't either. Arousal begins long before you ever get into the bedroom or anywhere close to taking clothes off.

Do you masturbate? If not, start. If you do, get a toy. Explore your own body and fantasies. Romance books and other forms of erotica can help you find what you like and dislike. See if you can find thoughts and sensations that excite your mind and body. Then share them with your boyfriend.

You can also work with him by sharing fantasies and exploring each others bodies without expecting penetration as the goal. Don't even think about actual penetration. Enjoy the other aspects of being intimate together.

Another thought occurs, what form of birth control are you using? If it is condoms, you might try a different brand and materials. Some women can have a very mild reaction to the latex or the lubricants and spermicides.

Relax and take your time. Sex isn't a race. Take time to enjoy the exploration of mind and body.

Invest in some dilators, they stretch your muscles more than foreplay. As long as you have sex regularly after that you should be fine.