I take a pill that allows me to skip periods if I feel like, so the last pill (of the pack) I took was at 9:30 - 10:00 the night before I had a guy over. The guy I had over had unprotected sexual intercourse (kinda. it was in and out because I decided I didn't want to anymore) and I decided to start a new pack of BC that night. I took it 4 hours later than I normally would. Do I have a chance of being pregnant? I have zero symptoms of being pregnant, but I have totally worked myself up over it all so I have felt randomly nauseous because of anxiety. Please help!