What amount of say does the father have over whether the mother of his fetus gets an abortion?

1) I’m mostly just wondering if there is a general consensus about this. If you want to air your opinion about whether you think the amount of say the father gets is the right amount or not, that’s welcome too. But please be civil or go away.

2) I’m thinking along the lines of a situation where the mother wants an abortion and the father does not. Let’s say, in this hypothetical, that religious beliefs are similar between the two of them (i.e., that both believe that abortion is a forbidden and damning act, or that both are atheist/agnostic). I add this bit because I think the question is more fair if it’s about personal reasons rather than spiritual lifestyle. If the hypothetical couple has similar beliefs, this factor is nixed.

3) I am not thinking along the lines of a situation where the mother doesn’t want an abortion and the father does. The consensus on this situation seems to be that it’s TS for the dad.