Hi there - I'm sorry you're going through this right now. I have PCOS too and I was once put on dexameth a blah also, just like you. If your blood work comes back okay, have them do an u/s - this is really one of the only ways to truly diagnose PCOS. Your bloodwork may be fine (like me) but your ovary may be polycystic. Looks like little pearls decorating your ovaries. I hope you don't have that -
As for your DH, make certain he knows that he is who you depend on the most through all of this. I'm sure he hates to see you hurting. I'm so blessed to have the support of mine - he wasn't always as he is now and I think he feels awful because he realizes that we will never be fully at a point in our lives to bring a little bit of me and him into this world. But he realizes that just like me, he is ready to be a daddy. Of course, I would be the momma.
Stay strong! Good luck with everything!