Hi, Ive been on birth control for a long time, with my doctors proposition, she wanted me to skip the iron/sugar pills every four months. So basically I only have ONE real period every four months...to help with my PMS. --SO, I this was the month I was supposed to have my period. So I stopped my pill when I finished the pack, and had a normal period... three days into my period, I had sex with my boyfriend... I took a pill the morning after we had sex...because I had just refilled my prescription the prior night.... Do I have a chance of being pregnant?? Or do you think I'm okay??