Sort of worried

Please help im on a time frame

I had sex today and cum landed on my pubes (yes i have a lot im not a fan of shaving) and it wasnt like full blown the whole cum. It was one single droplet and it was at the very tip of the pube. And it wasnt close to the opening of myself at all. It was pretty high. Thats a horrible example. And i cleaned it as soon as i saw it swiping away from my body and i made sure there was no more. Just one single itty bitty droplet. Either way im freaking out. Please help.

Should i or should i not take my plan B pill?