As the title of the thread says, I'm wondering if there is anything that can be done to try to prevent embryo's having chromosome abnormalities, or is it simply a matter of luck when the egg and sperm meet?

We are about to start our second IVF attempt as our first try a couple of months ago resulted in 7 embryos that had PGD testing done on them. They weren't able to get results on two of them, but the remaining 5 all had chromosomal problems It was devastating and although I'm told we were just unlucky, if there is anything that I can do to help the next lot of embies, then I really want to try!