Hi Gargy,
I belong to a site on egg donation as we are heading down that path and this topic had certainly come up. But there are a few women on that site who have children from egg donation that look just like them and get comments from people about how their child looks like them. So you never know, that could happen to DH.
and Liz is so right, genetics is only a small part of being a parent, there is too much other good important stuff to worry about genetics too much. Sounds like your DH will have lots of fun being a dad.