Yeast?

What is this? Yellow/green discharge. (Very pale green) my doctor said it's not a yeast infection (without even swabbing me.) Its super itchy and I've had it my whole pregnancy. I took monistat twice but never finished the 3 days because it stung so bad and that's the only one my dr will let me take. I got tested for bv and trich and was negative for both. I personally think its overgrown yeast but my dr doesnt care to check.

Yes I've been tested for STDs and there is no smell. I'm currently 38 weeks pregnant.