Recommend you go and see your doctor. Chances are nothing is wrong, but if you have any concerns or changes, your doctor can help. By the way, you can get pregnant if he ejaculates near your vaginal opening (although harder to happen), or with pre-ejaculation.

My child's father never actually ejaculated in me either and I ended up pregnant. My gyn dr, told me that pre-cum is actaully either as potent, if not even as more fertile, than regular semen. (never heard of that before...And if it wouldn't be for my son as proof I wouldn't have belived her) my advice to u would to go and get a pregnancy test, or call ur dr and make on appt. I got my period the month after my child's father and I had sex...Had it for three days (i normally get it for seven), and I didn't get another one after that. Some women also tend to have a change in thier cycle as they get older.
Call ur dr, and make an appt, or get an at home test.
Good luck
oh, and just to be on the safe side, try and use condoms in the future.....U can get pregnant even if ur b/f didn't ejacualte into u...And if u don't like condoms try and find a method of birth control u both agree with. There is so many different options available to women nowadays.....U might want to discuss them with ur Dr.

I think u should go n take a pregnancy test to make sure anyway. If u have any ova worries u should go n c ur local doctor. Jst remember any unprotected sex even if he thinks he doesnt ejaculate inside of u could result in an unwanted pregnancy or a std. Gd luck with evrythin hunni xxx