Had unprotected sex 1day b4 my period & my period didnt come sex was july30 period was meant to be july 31. what's happening? am i pregnant?

It is unlikely: that you are pregnant your period may be late for many reasons.. take a preg test to be sure but if so it is not from this most recent encounter

Pregnancy test: The best way to find out is by taking an over the counter pregnancy test. If this is negative, your period can be late for many reasons including stress and environmental issues so it may be just late this month but i would encourage you to take the test to alleviate your concern.

Pregnancy: If you are healthy and have sex without optimal protection you are always at risk of becoming pregnant. Sex during different times in cycle may alter the risk but why wonder? Do a pregnancy test. They are very sensitive and turn positive extremely early in pregnancy. If you still wonder, repeat in one-two weeks and your answer will be as sure as is possible without going to see MD