I have been cramping a week after my period and the day or next i had unprotected sex but he pulled out but ive been feeling sick and having lower pan?

Could have: An infection. Should have a full gyn evaluation to get a proper diagnosis and treatment .. Also the pull out method is not very good for contraception but it sounds like the timing was in your favor. If you miss your period or are late be sure to check a pregnancy test.while at your appointment why not talk about birth control??!!!

Possible infection: Pelvic pain after unprotected sex could signal an infection. Suggest you see a health care provider for examination and appropriate tests.