Outcomes of happiness and feelings are irrelevant to the morality of abortion.
So what if a baby can't feel, what does that have to do with making abortion okay? Again, all you have done is shown abortion 'not as harsh' when a baby cannot feel. Like killing someone in their sleep versus when they are awake. Point is: you kill them.
Let me diagram this. Person A=mom, Person B=baby, lines show who kills who.
1) A---->B
2) B--/-->A
#1, mom takes an innocent life knowingly.
#2, baby being born is a result of mom dying, but there is yet evidence to suggest it's the babies fault even. In the case of it being the babies fault, I argued the baby cannot be held responsible (previous posts for support).
In logic, when given the abortion situation, it fits this diagram. The last thing I would like to point out is Person A has all the power in this situation which makes this situation different from if both could choose or a third party.
As far as happiness...again all you have done is explained why abortion might make things better. In logic, something getting better/worse does not justify morality without strong support. I do ask for you to support this claim then.
In my view to happiness: there are countries where the death rate of newborns is like 90%+. So, getting an abortion is fine with them because of this. Saves already born lives (guaranteed to live longer) and less funerals and sadness. Unfortunately, this does not justify those people controlling the outcome of another person's life.
In my argument, I claimed that if a fetus is human, abortion is murder. Assuming the fetus to be human, what else do you disagree with that would make it non-murder? If you feel your claims happiness or feelings are actually useful, then please show me, but as of right now, the way you used them in a logical argument shows them as what we call explanations, not evidence.