Aw love I'm so sorry to hear that. It sounds like a rollercoaster, and one that'll probably be familiar in one way or another to all of us.
We started trying when I was 32, went to the docs at 33, FSH was 16.4, AMH was 2.1, AFC was 4 (thats total, not on each side 🙈). We needed ICSI because my husbands sperm are dire too (sidenote you always need ICSI if you use frozen eggs).
Good luck with your IVF! But also good on you for thinking about all eventualities, I did the same because I just had a feeling thats where it was going. I think you know if donor eggs are for you when you first know it might be something to consider, your gut will tell you. But, statistically, you've exactly the same chance with donor eggs as your own if you weren't having any challenges, which is 'good' as far as anything in this shitstorm is!
Some clinics do 'good' 'packages' of donor egg IVF, dont get me wrong its still so expensive and sometimes drugs are on top (although were talking a couple of hundred not thousands like mt IVF drugs were), but they give you a bit of reassurance (e.g. ours was 16k, two 'rounds' of donor eggs if needed, but all scans, bloods, transfers etc are included in that) x