That is great about your DH! Well, I guess - sometimes I would be so frustrated when tests would come back normal because it meant we still hadn't found the problem.
With only two blasts left, it isn't worth it to do this, but if you do another donor cycle, I really highly recommend CGH. We decided we would take our chances on the fresh transfer of our last cycle but had planned that if that also failed, then the remaining frozen embryos would get CGH tested. If you remember, that's what Wilson finally did and was able to identify the two normal embryos she had in her remaining batch and she had success. I just think there are far more abnormalities in donor egg embryos than we realize. It gets complicated too because sometimes an abnormal embryo can "recover" in utero and go on to be a healthy baby. It makes it hard to know what to do.
I think CGH will become the gold standard for all IVF cycles in the future and we will look back on current practices and say "wow, why did we just transfer embryos blindly not knowing their makeup?"
Forgive me if I've also asked this before and you've already answered - my brain is fried from sleep deprivation, stress, and menopause! But have you done the Dr. Kliman endometrial phase test? If you haven't, you can do his protocol regardless because it's one of those things that won't hurt you if you don't have a problem, but will help you if you do. All it really is is a more graduated ramp up of progesterone in preparation for transfer, but it seems to be the ticket for a lot of women. Too much P4 too quickly will make endometrium inhospitable.