Me and my boyfriend have sex quit often the last unprotected sex we had that i can remember was Oct 26 im not sure if we also did it after that but today is Nov 21. i live with my friend and i usually get my period 1-2 days before her then she starts we have always had our periods at the same time since i moved in 5 months ago sat Nov 10 i had spotting that lasted about 1-2 days then it stopped then my friend got her period and i never got my full "period" its already been 1 week and 5 days past the date i was suppose to get my period i have been feeling really tired lately and i was constipated until today when i woke up from my nap i had diarrhea out of no where, i had a sharp pain on my right side for a minute and i have been bloated, i took two pregnancy test, the first one a couple of days ago then the second one the day after and they both said negative, i feel like i am pregnant since my weird "period" could i be pregnant still? if not what would have caused my spotting at the time i was suppose to get my period? my last period was oct 16 and the time before that sept 10 my cycle is about 28-30 days. Thank you!