I had unprotected sex on august 24th 2015, which was 2 days before my ovulation date. and he did cum inside of me. my period was suppose to come on september 9th 2015 but it came late like mid day september 11th and didnt last but for at least 2 or 3 days

Pregnancy worries?: It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A pregnancy test gives a reliable result if done correctly. One can test about 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after having a weird period. An Ob-Gyn doctor can evaluate, if there are any worrisome symptoms.

Pregnancy test: Have a test to see if yu are pregnant - or better - see an OBGYN for an exam/test. Either way, it might be good to see if there is a problem since this is a bit unusual in both situations. If you don't want a baby - use good protection and think about STD risks too. Best!