Weight and fertility????

So my husband and I have been ttc for about 6 months now and I feel like we’ve done everything right when it comes to having sex during my fertile window..I’ve tracked my cm and have taken OPKs but AF seems to show up every month...I’m 5’10 and 207lbs so according to my doctor I’m overweight but not obese...my BMI is 29 which she said needs to be between 19-24 so I have a few pounds to lose but I was also reading up on how women with BMIs greater than 25 have a harder time getting pregnant because fat cells produce extra estrogen that kinda acts as bc for your body so I’m thinking that maybe that’s been our issue but then again I’ve seen women who are extremely overweight or bigger than I am or even obese get pregnant and it just makes me think that ok yes I have to lose weight but why is it taking so long to see my BFP..sorry just a rant but honestly kinda curious to see if anyone on here that is in my position is going through the same thing or has gotten their bfp in the same position with no issues