Discharge Question

I'm posting this anonymously because I'm super embarrassed. For quiet some time now I've been dealing with a very sensitive under region, to the point where if I have to go to the bathroom i usually end up bleeding because the toilet paper is too rough. Now I've started to have yellowish discharge that has a smell sort of like ammonia. I'm not sure what's going on and my OB who is female is on leave and so I'm stuck with a male OB which makes it really hard for me to go to him about things like this. I'm totally uncomfortable with him doing my cervical checks. Any advice?