I had unprotected sex without ejaculation. i got my period a 10 days later it was normal. but the next month it's late. could i be pregnant?

Maybe not, but...: If a woman has a regular normal period after sex, then she is not pregnant. If she cannot be certain that her bleeding was a normal period, then she could possibly be pregnant. A urine pregnancy test (available in stores everywhere) done 3 weeks after the last time she had sex will give the answer. Be sure to read the instructions and do the test correctly.