hi and welcome to bb. We opted for an unknown donor for that very reason. The child we are having is both mine and my partners. I think that it will be a very awkward situation for all persons involved. Personally i feel as though our child may have some confusion growing up with 2 mums so why make it more confusing. Just my opinion though. Hope i dont offend you. If you put yourself in your wifes position of course when bubs comes and all 4 of you are at the park playing she will feel like the odd one out. Anyone would. Is your relationship strong enough to handle this if it occurs? It will be tough and if its the decision you go with goodluck and i wish you, your wife and your wifes cousin the very best. At the end of the day all a child needs is love and support. Goodluck with everything and once again i hope i havnt offended you xx