Your friend's child is one example. An anecdotal case CANNOT be used to make a judgement like this. The fact is that there is a POSSIBILITY of birth defect.
If the baby were to be born with a birth defect or disability, would the mother be healthy or mentally fit enough to take on this enormous psychic challenge? If the answer is "yes", then ok. But be aware of all the possibilities. And have a plan A, plan B, and plan C. Support network is going to be key.
The father is not going to be fit to be around. If he is then what Lysis said is true "this is not going to turn out well". He does not feel the emotional sentiment of urgency. Even the mother does and she is struggling big time! She must cut her loss. Which will be a GAIN actually. Take it from me.
That is not to say he will NEVER be fit, but for the next 7 months he should NOT be in the picture.
I don't normally take strong opinions on this website regarding others' situations. However, I am on the sunny side of this struggle. Ravenin you are at the beginning peak. It's not easy to find someone to relate to in this situation. Now you have.