Help me!

The first day me/ my SO ever had sex before was on September the 9th. He didn't finish in me and it wasn't full on sex but it was inside of me the only thing could possibly gotten in me was precum. I was freaking out so he bought me plan b. I actually took two ( I learned my lesson the side effects sucked) i know I wasn't responsible for my first time, it wasnt expected. We had protected sex last night and after I even put water in the condom to make sure it didn't have any holes or anything. Im worried bc my mom hhh d her firet kid at my age. We both agreef to be more careful and are even considering not having sex until we can deal with the consequences of having sex. Can you please put you opinions down in the comments and upvote so it will get out?