Help???

Hi!! I’m pretty late for my period roughly 12 days I was supposed to have it on the 17th but I’m always irregular, I did “have sex” on the 21 of December, but I put in quotation because it was exactly sex he didn’t cum and we used a condom, so I’m not too worried about being pregnant but you never know... I am cramping and moody and have clear discharge, anyone tell me whats going on???