hi, and welcome
i never had my ovaries checked for cysts-- i think that after my bloodwork, the docs either assumed i had them, or figured it didn't matter if i did, as the results of my blood tests confirmed pcos.
anyway, i think the next thing to expect is loads of blood tests. they'll test for things like elevated testosterone, they'll test to rule out things like late onset adrenal hyperplasia (i'm not really sure what they test to do this, but as it was the other thing they thought i might have, and decided that i didn't, i'm sure they tested to rule it out), and they'll test your glucose tolerance. for me, this was the worst of the lot. they take some blood, then they make you drink this horrible drink that tastes like extra thick flat soda (orange or lime were my choices), then you wait a couple more hours, and they take more blood. i don't mind the blood letting, but i really didn't like the glucose syrup stuff! i didn't even wind up insulin resistant. yucky stuff.
they may run a panel to check for other things, like thyroid function, as a lot of people with pcos have thyroid function problems, too. i had my thyroid tested a few years before i was tested for pcos, though, so i don't know if they'll automatically test for this.
good luck with everything, i hope you find out a way to keep your pain down (or keep it from recurring) soon.
i would not go back on bcps. that's me, though. or any hormonal birth control. if i had known what difficulty i would have ttc, i would have started ttc a lot earlier. i didn't go on bcps until after i'd been with the man i wound up marrying, though. and that was primarily to regulate my almost non existant menstrual 'cycle'. the other reason is that my little sister wound up with breast cancer at 21, and she'd been on and off various hormonal bc things, and while the docs can't say if they were connected to her cancer, they also can't rule it out. however, millions of people are on bc of one form or another, or, like my sister, trying out different sorts, and the rate of breast cancer in people under 30 is very low, let alone those under 25. so, given those numbers, if it was connected, it was a fluke. still, i won't go near them again.