I want to give you ladies some support. I weighed roughly 25stones/350lbs when I feel pregnant. I also had irregular cycles after a miscarriage last year. I was checked for PCOS and that came back negative, so there was no reason they could see for it. After 11 months since I last got pregnant I got pregnant again. Now I'm almost 15 weeks tomorrow and everything is going fine.
I also conceived DS when overweight, but I wasn't as big at around 20 stones/300lbs 7 years ago. He was an accident on the pill! I'm sure you'll get some beautiful BFP and congrats to everyone who already has!