My pleasure! We've been there and it's a lot to take in so I'm happy to pass along info. The medical route did not work for us (my AMH was undetectable, even after losing 60 lbs), but I'm happy to shed light where I can.
OB/GYN's cannot test for infertility. Those tests must be done through an RE. There are certain baseline things Gyno's can do (basically prescribe clomid to trigger ovulation) but any official infertility DX or treatment needs to come from an RE.
Do as much research ahead of time to know what questions you want to ask the RE. Be forewarned that if they are anything like mine they will not deal with speculation or "if that doesn't work what is the next step," but it helps you focus since they will through a lot of information at you. RESOLVE, the National Association for Infertility has excellent resources of questions to ask your doctor, as well as explanations of the procedures they will do. They also have support groups around the US that may be helpful for you.
But no matter what, DO NOT let them diminish what you have done so far! You have lost almost 400 lbs against incredible odds. If you say you are going to lose 100 more lbs, I have no doubt that you will, and your doctor shouldn't either. Your RE may actually encourage more weight loss even if what they find at first blush isn't stellar, because there are some numbers (AMH for example) that can be artificially inflated or deflated in obese women. You are still young (cliche, and sucks to hear when all you want is to be pg, but it's true) and it will only be harder to lose and maintain weight loss after starting a family. If the RE tells you to focus on yourself right now, you do it.
| Pounds lost: 58.0