>>1303581 - Hard to diagnose the cause, as there are many, but there is a good chance that anti-fungal cream - e.g., clomitrazole - will do the trick this time of year. Cheap as shit on Amazon, and it works. I use it too (have little belly and get rash under it sometimes) and it is very effective.
2 - Yes, you can get pregnant. We did - my wife was about 360/370 at the time, and we used IVF. (And I have heard of much bigger women getting pregnant.) Again though, you have to diagnose the problem stopping you from getting pregnant first. It is not necessarily your wife's size that is the issue - e.g., you may have low sperm count or poor motility. And there are a myriad of reasons why your wife cannot get pregnant. Being fat usually is not it, but the reason for being so big can be. E.g., PCOS can make it impossible to get pregnant and cause you to gain a lot of weight..
Cannot help you with upstate NY, but maybe look to Canada - e.g., Toronto or Ottawa, depending where in upstate you are - to see some of their events?