Unfortunately, being in America, you're kind of screwed. Check this for states that require any coverage and which three simply require plans with fertility coverage be offered to employers who can turn it down. It's insane that there are no laws requiring, at the VERY least, comprehensive diagnostics to be run. Insurance will cover medical problems caused by drinking a couple bottles of vodka a day or smoking an entire case of cigarettes every day, but nothing says that we can get full tests for a condition we didn't cause. THIS ISN'T FUCKING RIGHT!! We're lucky Apple picked the plan for some fertility coverage, but we're still in debt out the hoo-hah, and I can still appreciate the challenge of doing this with nothing. I never dreamed of any coverage at all. This shit makes my blood boil, really. I don't think people in the UK can fully appreciate the coverage the do have. This stuff is ALL covered as long as certain qualifications are met. We have no equivalent. Having children is a right in this country only for those who can afford it - free if you can have them naturally, or out of pocket or with some coverage. This pisses me off!
Sorry for the rant. I'm pissed that there haven't been more tests done for you, and really that is probably due at least in part, if not entirely, to insurance limitations. There is a reason why you're not pregnant, and there is a reason your periods are so insanely long, and you deserve to know the answers.