Paronoid pt.372973 HELP

So today I had safe sex (with condom) with my boyfriend. After he came we started kissing and I took off his condom for him and started stroking his dick. After I that I was stupid enough to touch my self not constantly but to see how wet I was not thinking to wash my hands right after touching him. I am a very paronoid person. I am on the birth control shot knowing it’s supose to be 99% accurate,however not sure if I should buy a plan B tomar morning at the pharmacy to make sure I’m good and maybe to calm my nerves. Not sure what to do can some of you guys help me out.