Yeast infections ruining my life!

So I just had sex for the first time in weeks, once finished I rushed to get a warm rag and towel for my bf to clean himself, he turned the light on and saw white chunks of discharge all over. 
He looked sick, and said "what is that?" I wasn't aware that I had an yeast infection being as though I had no symptoms. It looked as if the yeast all fell down onto him.
 I simply told him "I don't know" he then try to look to see if it was myself or him. I told him to stop and let it go being as though I am embarrassed enough. 
This has happened before a long time ago and he didn't say anything, he just cleaned himself and asked was that myself or him. I shrugged and kept it moving. 
This time I know it's me but because of his reaction I fear telling him, "well I think I may have a yeast infection" he may judge me.
He kept saying "what is that?" When I said "I don't know" he said that's scary. 
I don't know what to do, I have a gyn appointment Friday and I can't do anything until then.