Hello, I am 19 years old. I had unprotected sex about 36 hours ago but he did not finish at all, especially not inside of me. I am still worried about becoming pregnant, though. My period stopped a few hours before having sex. I have not been taking Microgestin, but I heard that if I take it now and continue taking it for a few days that it will work a small percentage less than the morning after pill. Is this true? Or is there some way to use the Microgestin as an emergency contraceptive? Also, how likely is it that I become pregnant?