Help! I'm freaking out.

My boyfriend and I started a sexual relationship a while back, a condom broke a couple of weeks ago while he was taking it off (we think) and it got on my bed, my leg and his leg. I dont think any in me but we're not sure. I didn't shower for a couple of days after. After that, my vagina like not vulva, has been itchy and I can't go to the bathroom that well. my period won't be coming for a while so I'm still kind of freaked out. Any calming words?