I am on my fourth month of MonoNessa birth control. I started my current pack 2 days late, on the 11th. I stupidly had unprotected sex at midnight on the night of the 14th. He was not wearing protection, but he pulled out before anything messy happened. (I know this is not a for sure method of prevention.) I was curious of the chances of me being pregnant and what approaches should be taken before my mom kills me for being an idiot.