TMI sorry odor

I'll be 28 weeks this coming Wednesday, and I have noticed for the past 2-3 weeks I've been having some white discharge with a bad odor that I don't even like anybody sitting next to me cause I feel like they can smell it too. I have all my test done and everything has came back negative i go see my doctor this coming Thursday and will mention it, but I've also googled and some sites just tell me it's a hormone change? Any moms experience this before it's so embarrassing