Same thing happened when my wife was about 4+ months pregnant. She would stink so bad down there that I could smell it through her clothes when she was near me. I wouldn't even have sex with her that shit made me want to puke, probably the worst thing I have ever smelled. Remembering it is even making me sick. I forget what it was because its been 5 years. I think it was BV her doc gave her these gel antibiotic capsules and an applicator to jam them up there. It got a lot better after that.