Kissaboo - it depends who you go with, but because of your age and the fact that you have both conceived before, they would probably only do one. I think the more reputable clinic prefer to do only one because multiple pregnancy is actually a complication.

Like I said in my second cycle I had 2 embryos and one was transferred while the other was frozen. Had they transferred 2, DS would have been a month older. It costs much less to do a frozen embryo transfer and they can just do it when you ovulate. I guess each case is different though and you FS will decide what's best in your circumstance.