TV's Frink said:

Let's say my wife and I have three children, two of which are still with us. We absolutely under no circumstances want another child. Does that mean we should have to give up sex completely?

Unless you don't want to accept the possible consequences, yes.

Yes, we use contraception, but the failure rate is not zero. Should one of us have to have surgery, along with all the complications?

I'm not sure I understood that. Surgery for what?

If we were to get pregnant accidentally despite taking all reasonable precautions, should we be forced to have a child we did not want to have?

Precautions that you know are fallible. Why risk it, then? I understand liking to have sex, but in my opinion, if people are willing to have sex, then they should willingly accept the possible consequences too.

Shouldn't abortion at the earliest point possible (six weeks?) be an option?

Shouldn't thinking about it (again, the consequences) before having sex, be an option?

Oh, and at some point I'll bring up our stillborn more specifically, and you will find there is another reason to allow "abortion" beyond just in cases of rape and danger to the mother.

I mentioned malformation too, but I'm open for more reasons.