TW: BLEEDING AT 32 almost 33 weeks!

I had sex last night and woke up and peed, and when I wiped this is what I saw this. Should I be concerned?! Ik I should probably call or go in just to check…. But needed some opinions in the meantime because I’m totally freaking out now… I had an ultrasound just yesterday baby looked great, fluids were normal, everything was good! So now I’m just freaking out a bit…. Thoughts? Could it just be irritation from sex? Or uti? Or should I be concerned that something’s going on?