Brown Discharge Cockblock

Kristelle • Hakuna Matata
So I've had my IUD for about 4 months now. It's the Liletta, a hormonal IUD I got inserted at Planned Parenthood. So I got the IUD when I was still with my boyfriend and he didn't mind the brown discharge. We broke up and now I'm worried about future hook ups. I still have the brown discharge and if I stick my finger inside (for lack of a better term and since I have no idea what the fuck it is), I guess its pieces of my uterus are on my finger. Anyway, I'm afraid that when I'm having sex the brown discharge and "pieces of my uterus" are gonna end up in his dick. 
Is there anyway I can like... clean out my vagina without douching? Or when I'm wet, will the brown discharge and "my uterus" not even show up on his dick? Am I thinking about this too much?