I always take my patch off on the same day, about the same time. I took my 3rd week patch off saturday. I ALWAYS get my period on THURSDAY afternoon. I had sex while I was on my week off last month (was kind of bleeding at the time). I haven't gotten my period yet, don't even feel like I'm going to get it, which I usually do ie. tender breasts, bloating, sleepiness, etc. I put my patch back on tomorrow... Is there a possibility I'm pregnant?