Could I be pregnant?

Okay so I'm freaking out a little bit. So I took the morning after pill on the 11th. I also had unprotected sex on the 24th and the 25th, because it said I had a 3% chance of pregnancy, and we used the pull out method (he wasn't even close when he pulled out so there wasn't much risk.. I think). And I was due my period on the 27th. I started my period on the 26th, and started Rigevidon birth control pills on the same day. I bled through two tampons and then changed into a pad on the night, and u haven't bled since then. Could it be the morning after pill affecting it? Is the birth control? Could I be pregnant because I'm freaking out!