It could be a few different things: one being he might be a bit big and that thursting would most likely not feel good if you are not wet enough or aroused for a good while. It could be your ovualtion is near and some times with mine its harded to enjoy...Not sure why just is. Another reason is it hurts is your not telling him and he keeps doing the same thing not knowing that its not comforable for you. Communtication is a big part of any relationship...Dont be shy to tell him because you dont want to offend him or have him think somethimes wrong with you...My best addive is to try and wait for a few days the next time you have intercourse with him you should go slow and try for play to get you a bit more propared, also take it slow at the begining and once your aroused enough you shouldnt have as much of a problem...If none of this works go to the docs to make sure you dont have a infection or anything...And remember to talk to him about it! The best of luck.

Deep thrusting - what may be happening is he may be hitting your cervix. Sometimes when me and my boyfriend have sex, he thrusts so hard and so deep that it hits my cervix, and it's enough for me to outloud say, "ow!"

so, that could very well be what it is...

Be careful :)

I too am having painful sex...My first time with my boyfriend last night infact..I was lubracated and it didn't hurt until he went deep and it hurt soo bad, felt like he hit something inside me.....I've put a call in to my doctor and just waiting to hear back........Would appreciate any feed back