I have been on birth control for about half a year or so, and I have always taken the pills at their allotted times. Recently I forgot to take a third week pill, but realized it after 7 hours and took it. About 4 days later I had unprotected sex. I usually spot heavily the week before, and this time I had nothing. Now its the third day in the week in which I have my period and still nothing. Could it be possible that I am pregnant? I plan on taking a test, but I would like some input from everyone. Please help. Thanks.