I would go to the gynocologist if I were you. He could do some blood tests or a sonogram to find out what is wrong. You might have polycystic ovarian disease like me. I have like alot of cysts on my ovaries and I dont have any periods either and because of that it is hard for me to get pregnant also. And then he can give you medication to help you ovulate like glucofage. Thats what im on and it helps me ovulate. And lose weight also. If glucofage don't help he might put you on clomid. Good luck! Hope this helps!

Go see a doc... Might be something wrong with you, maybe your partner, possibly just bad timing...