I thought I took my pill sunday, but I actually just put it on my desk. Then I had unprotected sex that day. I then took one pill monday and one tuesday because I thought I made no mistake. But I just saw my pill I "thought" i took. So I took two today (wednesday) but I started bleeding today, but I am worried I am pregnant, because I didn't take a pill the day we had sex, and didn't double up the next day. The pills were all week 2 pills.