My period is 16 days late! The day before i was supposed to get my period-as ece predicted- i had some sexy time with my boyfriend we had anal ,protected of course, we had a good time. But my nervers are cracking.. i took two separate pregnancy tests that came back negative which was a relief. But now i am wondering whyyy i still didn't get my period? I mean i bled the tiniest bit before i was supposed to get it bright red sppotting but then nothing. The last time i had my period i went swimming can that affect my cycle?