I’m mostly against that, but in certain situations, like doctors discovering that a child won’t be able to have a normal life, because of a disease, when they discover that in the beginning of a pregnancy, they can abort the child. In cases like that, I would understand.
You know, when the harrassing kids kept giving us trouble because my son was being beaten up every time, I also did say a few times, I should have had abortion, no kids, then nobody could beat my kids or harrass them, if they don’t excist, and then, nobody could try start arguments with them and me like what happened now again. But I’m still happy that I do have them. They can’t help it either. But I don’t like to see them unhappy. Oh well, I know now what to do and we are happy again. 
Insha Allah we will remain happy. I hope nobody get’s these kinds of troubles and that everyone will be happy.