Pus Coming From Extaction Yellow Pus Coming From My Pup?

Yellow Pus Coming From My Pup? - pus coming from extaction

I realized that my dog was licking his "real estate". I realized that it has recently launched a very light yellow, almost like a liquid pus from it. It is not exactly 1 year. In Gonna Take to the vet, but wondering if anyone knows what it is. A dog can be a yeast infection? I also think being pregnant and if so, is this normal?