belle, congrats on a fabulous result! it is a bit of a numbers game so the more you produce (eggs) the more chance of having some for FETs in the future (if you need them).
as a comparison, i normally get 4-6 eggs/ stim with 1 making it to ET with no snowbabies, so your result is wonderful and you are only 2 years younger than me.

i don't know how long you will be required to wait after OHSS to do a FET but i assume it will be an April FET at the earliest to ensure your system has calmed down. there are others better experienced to let you know this.

GL!!!! xx