I wouldn't expect any advice about supplements, for sure, maybe diet if you are lucky. They will be helpful in re-reading your bloodwork and firming up your diagnosis, and from there you can research on your own what to do.
My ob/gyn with my bloodwork was hopeless. She just said "unexplained infertility". I researched it on my own, and my testosterone seemed high even though it was just barely in the lab's normal range and I was pretty sure it was PCOS before I went to the RE. He took one look at the testosterone result, said "this is about 3x what it should be for your size", and "you have PCOS." He then presented his plan for me to get pregnant, which included injectables and such.
All I really needed was that definite diagnosis, and then I researched on my own, went on an appropriate diet, and had regulated my cycles in 3 months, and was pregnant 3 months after that.
I was glad, though, that I did have the RE's plan for injectables and all that if I needed to fall back on it, actually, though. Actually, we had decided that if I didn't get pregnant the cycle I got pregnant, we were going to start his regimen, and all it would have taken would have been a phone call to get started at that point.