TMI but I'm on my 2nd day of my period.. Had unprotected sex this morning, and I'm on Ortho Tri Cyclen lo. I just started the pill yesterday & i took 2 since I missed sunday. He came in me.. I took my pill for today at the same time. Do i have a chance of getting pregnant especially if I have a short cycle? What would happen if I missed a pill? I'm new to this. Thanks