So uhm

I'm im quite the predicament. I'm 17 with irregular periods. And I before I missed my period I hadn't had sex(protected and unprotected)for 3 months. This January I missed my period. Two days back my and my boyfriend had sex and today I found a cottage cheese like discharge in my panties. So I panicked and doused my vagina with vv hot water and found just a little more discharge coming out. Idk any opinions? I know I'm being stupid and irrational right now I don't need people yelling at me.