Hey,
I also had 5.1 AMH and similar FSH levels.
This was when I had just turned 33, maybe literally the week I turned 33. We had an NHS round (unexplained infertility but my husband had less than decent sperm). We managed to get 7 eggs, 3 mature, 2 fertilised, 1 day 5 embryo which is my almost 4 year old daughter.
Fast forward trying for a sibling... it had gone down to 4.6 a year ago. We have been doing egg banking rounds; just stimulating and collecting embryos before transfer. We got 1 day 5 embryo in September and 1 day 5 embryo, today as it happens.
We are hoping to transfer this summer after prepping my lining and doing all the tests to see if everything is okay.
This off the back of 11 (yes 11) rounds of IVF in Cyprus that we thought we were "saving money" which resulted in a total of 6 embryos between them, 4 PGD normal, 1 didn't survive the thaw, and 2 failed transfers. We technically have 1 frozen left in Cyprus but I don't have many hopes for it.
We ended up going back to the clinic we used for our daughter in London, CRGH.
We massively regret going abroad at all, especially during covid (I was travelling during 2021-2023).
A long way of saying - it's the quality of your eggs, the quality of the embryologists and doctors and the quality of the clinic that really makes the difference.
I read it starts with the egg and implemented the changes. My husband and I stopped eating red meat, he quit vaping (which was massive for him as he'd been a smoker his whole adult life), switched to a very Mediterranean diet, organic everything, wild caught salmon/fish only, etc. We took a slew of vitamins. My thinking was, if we can't get the quantity then at least I can work on quality.
This last round, (collection last week), we had 3 follicles at baseline, and only 2 grew. We had a meeting with the doctor to abandon and switch to IUI and she thankfully convinced us to continue. Thankfully she was right - out of the 2 follicles, we got 2 mature eggs, both mature. One was frozen today and the other is still looking good but will get an update tomorrow on it as it isn't quite a blastocyst. I am utterly convinced it's quality we need not quantity.
Hope this all helps!