It took two to tango and now look? A baby is added to the mix. Hmmm, last time I checked, thats what happens to two consenting adults...Yes, he consented to sex! He was not the only one under the impression she could not have children.
Although there are people that behave in this manner and we do not have the other side to this story, I can only determine what I feel by what has been said. Quite frankly, any man that can indicate its not his child when literally he knows it is and have no want to be a good father simply because he didn't make the decision tells me he is on a power trip to have full control. Unfortunately, sex without a condom is not well thought out or in control.
It was based on what she truly believed but who ever said a Doctor has never been wrong??? Unfortunately, the only one suffering will be this innocent child.