Could it be Creation by rkn?

In that one, they are divorced and get together after a luncheon, and Lois ends up pregnant.

Cuidadora

"Honey, we didn't care if you were a Russian or a Martian... You were ours... and we weren't giving you to anybody." ~ Martha in Strange Visitor

"A love that risks nothing is worth nothing." ~ Jonathan in Big Girls Don't Fly