I Got my period the first of June and started on sprintec one the third which was the first Sunday. I missed my pill on the 13th 15th and 16th, I did not make any of the days up because the pills has such a crappy affect on my body and I didn't want to deal with the side affects. I just took Sundays pill and I'll just kee taking the rest until the pack is done but is the a possibility I could be pregnant?