Hey everyone.Well, I had protected sex 8 days ago, I was supposed to have my period 4 days ago!It means, tomorrow I will be 5 days late, and I usually get my period every 28-30 days.I know it may be too early but I used 2 pregnancy tests, & both came negative.I've been having cramps, but no period.The last time i had sex it was like...3 years ago.Maybe having sex after a long time delayed my period?Oh please, can someone help me?