That's interesting about the iui subaru. AMH is nothing to do with quality at all, it only mean quantity. My BIL is a GP and last year did a trainging programm in US to do with natural fertility. Anyway when I told him the AMH he was very angry. He said he'd investigate for me. Basically AMH was initially introduced as a marker for response to fertility stimulation and especially for IVF. It gives an indication of how well you are likely to respond. He contacted a number of US specialists on my behalf and his outcome was- the greatest predictor of fertility is still a woman's age and also AMH is by no means anyway to predict the liklihood of sponatneous pregnancy. In addition to this there is a link between the removal of endo and low AMH, it has been shown to be lower after lap for endo!! V interesting and totally fits in my case.
The hypno lady I go to said herself, some women are maybe born with smaller 'batches' than others. It doesn't mean they are crap or have seriously depleted in numbers either. It may just have been that there was less to start with.
I have beenb researching myself and GRI's figure for IUI is 8.3% success for my age group, Nuffield is 20%!!! Such a huge difference. They also informed me that's where I'd be going for the whole insemination part as they have completely shut up shop at GRI, they're on;ly doing scans, bloods and meds there.
Another interesting point, GRI seem to treat women all as one. I asked why they didn't do a FT scan to show rupture and was told they don't need to as it should rupture. Well, that's total crap as I have been on meds for 18 months which would have allowed me to conceive naturally (not strong enough for ovulation induction though) but they have included 10,000hcg for trigger. I never properly ruptured on it!! So I would need more. They don't seem to get this. Coincidently, I have about 4 vials of hcg left in a drawer!!!