Should I use mine or my partner's sperm?
discusses the questions surrounding how to choose whose sperm is used to create the embryo. Many health factors are evaluated during the intended parent screening that may help dads-to-be make this complex choice.
How do we decide whose sperm to use?
The first thing to consider is the desire to be a genetic link to your child. Some dads-to-be do not mind not being a genetic link while others very much are. Another thing to consider that's really important is your family history. There are genetic medical conditions we cannot screen for such as Bipolar Disease, Schizophrenia, Parkinson's or other multifactorial illnesses that raise concern in their family tree that might be passed on. Also, consider addictive behaviors and major depressive illnesses. Medical conditions that can potentially be passed on through genetics might be a reason why you don't want to use your own sperm in creating your family. Another thing that might come into play is choosing a donor but they carry the same "broken" gene as you. In that case, we would likely break the match as it is a higher risk of carrying on that gene.