It's my first month of birth control and I had unprotected sex on the last day that I would've been fertile (day of my 9th active pill). He didn't cum in me but there's always that chance of pre-cum. Today I take my 4th inactive pill but I have yet to receive my period and I'm extremely nervous. I keep getting the symptoms I would normally get when my period is about to start but it still hasn't come. Shouldn't I be getting it by now or could I be pregnant?