I am a Catholic--converted from the Baptist Church about 20 years ago and I have an adopted son.
I am opposed to abortion. I also recognize the political realities. If Roe v. Wade is overturned, which is not likely anytime soon, there were be legislation that would seek to ban abortions except when the health or life of the mother was in danger and in cases of rape and incest. That is a political reality.
I am not a theologian and as I have grown older my views on this topic have become more conservative. If there was an outright ban, I would not be upset.
Now I have to admit that I am speaking from a somewhat bias perspective. As I said my wife and I have an adopted son. We could not have children, so the issue contraception was never really an issue for us.
I cannot answer the questions about population control and other matters. The issue about a woman having the right to control her own body is compelling, but she exercised that right when she had sexual relations, knowing it could lead to pregnancy. (Rape and incest are different and admittedly do not have a good answer.) The question has always been when does life begin. I think stem cell research is showing that the basis of life begins at conception, thus abortion is not a viable alternative.
Finally, I have never believed in abortion as a form of birth control. It has always been a matter of convenience (with some exceptions). Every person engaging in sex should know that the result could be pregnancy. That is when the choice should be made, before and not after. Rape and incest are more complicated, but many people conceived that way have gone on to lead meaningful and productive lives.
There will always be debate on the issue.
Finally, as some have noted, an outright ban will send those seeking abortions to the underground abortion mills. So, you will probably never stop it, but a ban might make more people think about the consequences.