On Friday Around 11 Me And My Boyfriend Were Fooling

On Friday around 11 me and my boyfriend were fooling around and ended up having unprotected sex. I am not on any pill. He did not end up ejaculating in me I don't think, pretty sure he did on top of my vagina. Tomorrow we are planning to buy the morning after pill for me. Is there any way of making my position better? I really can't get pregnant. Also am I at high risk?