We actually have found a trend where heavyset women who eat poorly do have all girls and you can read about that here.
https://www.genderdreaming.com/forum...irls-boys.html
We regularly, surprisingly regularly have blue swayers go onto a sway diet and gain a massive amount of weight and have a girl. It was such a thing that I've really really REALLY had to put my foot down and limit their weight gain to a very strict 3-5 lbs for most blue swayers, because so many who gained 30+ lbs ended up with a girl. So don't count yourself out yet.