Hi hun,
I had 2 blasties transferred (on separate occasions) from the first and only cycle I did in 2008. Basically my FS told me that it's still the fastest way to get pg as implantation rates are higher with a 5 day old blastie. At the time of going for my cycle I had a pretty big fibroid in my uterus, so he was concerned that if we go day 2 or 3 we might be taking too long to get pg. I had one fresh blastie transferred in 2008 and I got pg, but sadly I lost my angel at 21 weeks because the fibroid went ferral on me. We then made the decision to remove the fibroid and waited 6 months for my uterus to heal, and then I had a FET in July last year which also resulted in a pg. We are going again later this year hopefully, and I have a feeling he'll want to go to day 5 again. I am concerned that because I am older now, we might not get to day 5, so will ask if he will consider day 3. I had my 'egg reserve' levels checked and they were fine, so he said the quality of my eggs should be OK. He will just increase my dose of gonal (I was on 225 I think). Talk to your FS hun but he is probably coming from the same angle as my FS. GL hun in whatever you decide to do, I really hope you get your number 3 very soon!
B xoxoxo