I'm on birth control and have been for 1 1/2 years. I take it roughly around the same time everyday. On April 29th I had unprotected sex. On May 6th, exactly a week after, I started taking my sugar pills, I normally start my period on the 3rd day. I did not have my period at all, on the fourth day, i passed a small clot less than the size of a dime, I also had a smear of light light pink when i wiped (sorry tmi). I had a few cramps, which were not as bad as when I have my period. I was suppose to start my bc again on may 13th, but I didn't to see if i would have my period again this month and incase I may be pregnant. It's been almost a week since I was suppose to have my period. I'm taking a test in about 6 days. Is there a chance I may be pregnant?