I recently had unprotected sex with a friend of mine and have been worried about her getting pregnant. She's been on birth control for a while, but recently switched to a new brand (Ortho Tri Cyclen Lo Generic had been discontinued, but I'm not sure what kind she just changed to) and was on her 15th day pill when we were intimate. I pulled out, but I'm not sure if I did completely in time, so she took the first dosage of the Plan B pill 15 hours afterwards and the second one 12 hours after that. Should I be worried that she could become pregnant? I seriously cannot think of anything else and it's driving me mad. Any help would be appreciated, thank you all.