Help! Shower handjob...EC?!

Here's the sitch. My boyfriend and I were in the shower. I'm still a virgin so we're going slow, I am learning to give a blowjob. Blowjob wasn't working fast enough so we finished with a handjob. He came in my hand, but I was sitting on a bench beneath him and didn't catch it. Some of his cum landed on my thigh, I stood and rinsed it off with water. I rinsed my hands free of everything. But then I continued to wash, and I washed my pussy with the hand I used to jack him off. ?!?! I don't know am I psyching myself out? Could there have been sperm on my hand that could have entered my vagina? I started birth control 14 days ago, so my cycle is off, but late by a day. I don't know I'm just new to this and I'm considering calling my gyn for EC? What do you think?