Weird smelling discharge?

I went to the doctor last Friday because I thought I had a yeast infection. I had some itching on my inner labia and it smelled like onions..

the lab tests came back negative for yeast infection, bacterial infection, and trich so I don’t have an infection.. they told me that it was a fungal thing that happens sometimes because it’s been so humid out and to rub monistat on the outside for 7-10 days and it should go away.

It’s been a few days and the itching has stopped but now it seems like my discharge still smells SO bad. Still like onions or something. Has anyone ever experienced this? I haven’t had sex in a little over a week

I am 27 weeks pregnant btw