Itchy labias possible recurring yeast infection

Envy

I am 22 weeks pregnant I have been tested multiple times for STD’s over the past 2 months they all come back negative. I have had a recurring yeast infection and I think it’s coming back again for the 3rd time. Did anybody else have yeast infections sent from hell that just keep coming back? I’m talking tender itchy labias/anus and what looks like the skin is rubbing off my labias when I wipe? My discharge is normal though which is what’s throwing me off & it’s not even my vagina that is itchy only the other parts. I had tested positive for a yeast infection Nov 25th and the symptoms have came back twice since then and cleared with the use of miconazole.