HELPPP!!

Okay so Saturday I had sex for the first time with my boyfriend of a year & a half ... & we used a condom & everything but now I'm EXTREMELY itchy down there & in the shower when I went down there to clean there were little pieces of skin. I think. I'm extremely itchy but there is no bad smell nor clotty discharge. I'm so uncomfortable and I don't know what to do :( he says he's fine, so I guess it's just me. Any advice ?