I'm going crazy...

I gave my bf a handjob and there was precum/cum on my fingers I wiped it off but idk if it was completely gone.. I went to fix my pants and touched the outside of my vagina. I was also on the 3rd day of my period but they say it  is possible to ovulate on your period. The next day I took plan b to try and ease my mind but it's not working I've started to utinate mlre and I'm freaking it more...anyone please I'm so scared idk what to do