Hi Onion
I must say i do not know much about IVM. It is not offered at either of the clinics I was working with. Last I heard it was an Oxford development and they were the only ones using it - this likely has changed. I did once ask about it and was told i was too old and i never really bothered reading about it again.
There may be some motivation for Oxform to push IVM on you, as they are trying to get wider uptake of the therapy across the UK and abroad (read - RESEARCH). However I don't think they would do this if they didn't think you'd be a good candidate - remember they are trying to improve their statistics and increase their absolute number of success stories.
It wasn't clear to me whether you were an NHS patient. If so, they could be saving costs but again, they would not 'waste' money if they didn't think you had a good chance with IVM. If you are paying then there is no direct commercial incentive for them to push this on you obviously.
As for me this ovary 'aging' thing, as mentioned, was due to a high response to stimulation which, although can lead to negative OHSS symptoms, is definitely a good thing for you - you have lots of eggs.
Curious what your FSH doses were. A 40-year old typically gets more then 300iu apparently. Mine were:
#1 250iu (then lowered to 200) produced >20 follicles with 15 eggs. Transferred 2 embryos.
#2 200iu produced ~15 follicles with 11 eggs. Transferred 2 embryos.
#3 150iu produced 8 follices with 6 eggs (and this low dose is the only cycle that gave me OHSS). Transferred 3 embryos.
I have every confidence in Oxford. We started out there where my husband's situation was diagnosed but it was too far to continue with once we moved out of the area.
Best of luck.