IVF: Enough follies?

Rachael • Married to my wonderful wife, mom to D, twins on the way. lots of other roles and titles.
I just had my day 7 ultrasound. I respond really fast to Meds, so retreival will likely be Friday. I already have one at 14mm. But I only have 6 "real" follies with two smaller ones that he doesn't think will catch up.
Has anybody had luck with 6? We were hoping to transfer 2 and have some left over to freeze.