I am not really experiencing any symptoms of pregnancy, but my boyfriend and i did stuff. he didnt get anything in me. should i be worried about pregnancy?

Well, best to use birth control if you do not want to get pregnant. So going forward, do not become intimate unless you are fully protected by birth control. Make a doctor's apppointment or Planned Parenthood to discuss. You can never be certain that a partner "did not get anything in you" if you "did stuff". You need to wait for your period and if it does not come on time, take a pregancy test.

An erect penis is secreting sperm containing semen continuously. If the stuff you did involves an erect penis entering your vagina, the possibility may be minimal but not zero.