Abortion would become much easier and safer to do and really hard to restrict: just smash the egg and dispose of the evidence.

Its not even “Abortion” anymore, the definition of “Abortion” involves "pregnancy. This is not a “pregnancy” so its just called termination now

And most women probably wouldn’t care what happens to the egg as long as paper abortion becomes legal (and if not, I absolutely see how some women would just smashing the egg and throw it out in the trash, or eat it, and I wont blame them. Paper Abortion should be legal, especially in this scenario.)

And I think, since the “fetus” is now in the egg, some country’s laws might change to require both parents to consent before termination, since the mother is no longer at risk since they are no longer carrying it, and both parent have stakes in the egg.

And those very patriarchal and conservative societies might make the father the only one with control over whether or not a egg gets terminated.

(Also, Fun Fact: Egg abduction becomes a thing)