Oh ok. I'm sure they'll just go by the first day of you lmp to get a starter due date.
Well, my obgyn did tons of bloodwork on me and determined insulin resistance was my problem, which is indicative of PCOS so he diagnosed me as such. My RE told me PCOS has become the new dumping ground label for all ovulation disorders without a clear cause. He confirmed that I am severely IR and the medicines he put me on for that has made me resume normal ovulation. I wasn't ovulating at all on my own, and all of the rounds I did with my obgyn of clomid and then femara resulted in only ovulating twice and that was on the highest dose possible. Fortunately, I don't have to take any ovulation induction drugs now that my IR is under control. Sorry, I know that was way more than what you were asking...LOL!