New year New me

So this year, I had no plans for the new year party I was just going to stay at home and wish my parents at 12 am an sleep. But my parents suprised me with a house party, they also invited my cousin 20 to the party, only because i don't get bored in a old people party, so after party around 2 am everyone one started leaving

My mom made my cousin to at my home for the night, and she agreed,so we decided to watch a movie and in mid movie my cousin started cuddling me, (we weren't drunk) then one thing lead to other and we had sex & became lovers,but one thing we didn't realise that we had no protection, so now we are hoping that she doesn't miss her period otherwise it will be a very big problem for us