Obviously? check any set of health statistics.

Psychological damage can occur at any point in a child's upbringing it often does not appear or become a problem for decades.

How does a male produce a child....you certainly must be super intelligent if you can work that out :0)
If you are referring to a man marrying and having a child with a woman, leaving her, marrying a man and keeping the baby, then I think that is a little far fetched even for super brain Steve.