Freaking out!!!

Hey, I'm having some issues down under. My period was 2 weeks ago. I'm not due till 19 more days. I've been having sex with Eddie after my period. I've recently I've been spotting ever since then. .. a brownish red, we had sex right now and I went pee a while after and it started hurting with a sting after but it's coming from my hoha... I'm starting to worry. Any ideas?