I'm 2 months late on my period. i had unprotected sex and my boyfriend did cum inside me. i been cramping a lot.could i be pregnant ?

Yes: It's that simple. A home pregnancy test should be able to answer this question quickly. If it is positive then you should get dialed into prenatal care right away. If you are a smoker, now is the time to quit and make sure to take a prenatal vitamin and folic acid supplement. If the test is neg, see your Dr. anyway. You need to find out why you aren't menstruating. Most likely though, pregnant.

Yes: Good chance of pregnancy based on your description. Recommend you get a pregnancy test.