1) She returns to the congregation as a single mom.
2) Not making it financially as a single mom, she depends on the church to help her make ends meet.
3) She gets pregnant out of wedlock, which means her financial dependency would increase, as she would be even less able to work while caring for a baby.
4) Mitt tells her that she cannot expect the church to subsidize her bad choices any further. She cannot support a new baby. She should give it up for adoption.
If I was in Mitt's position, I would have done the same. Failure to enforce expecting responsibility will doom any group.
You left out number five:
5) Do it or ELSE!!!!