i'm sorry. it's a tough situation.
i'm very glad that you're not asking about how to change your husband's mind. i'm firmly in the camp of 'when one is done, it's over.'
having frozen embryos does change the dynamic somewhat. i tend to clutch my head at people who mourn theoretical babies, but when you've got 'em in this situation i can see how it makes it harder.
i think the most sensible thing to do is keep firmly redirecting your own mind back to what you've got instead of what you don't, exactly as you would with a toddler. and with the same degree of patience and love, not being mad at yourself for your longing.
'i know you want that baby, sweetie. ooo, here's a big hug. now let's go play snakes and ladders with the two we've got and enjoy them.'
sort of how you get through a craving to smoke or eat another brownie.
if you absolutely can't do it on your own, no shame in finding a good counselor.
khairete
S.