Am I wrong for feeling this way?

Mae

So my fiancée and I were discussing things because we are struggling with money and he brought up the fact that he wants to donate his sperm but hates the idea of having his own kids. I don’t understand. He knows having a child is one of my goals in life but I just don’t understand.. is there something wrong with me? Am I not pretty enough for him to even want to consider having a child? I have nothing against people who get inseminated but what’s the difference between having a child with his wife and a random woman he’s never met in his life? I don’t mean to offend anybody if I do. This is just something that does upset me a little bit..