My clinic would only do multiple transfers if you fullfilled their criteria of (roughly, from memory) 3 failed transfers, age limit (can't recall what it was), fertility factors, and even then, it was down to your doctors discretion.

I was very tempted at the 2 transfer (1st frozen) to have both frosties put in, but I'm glad I didn't. Besides - I don't think I fullfilled any of the criteria.

I wish you the very best of luck for your transfer.