YAY! The most important thing is to give those ladies as much time as possible, using the methods that have been mentioned already. Getting to Level 3 of Medicine Tech before they reach 60 will help a lot, too. Good luck! (And hang onto a paused copy of that savegame file, so you can try as many times as necessary).

You might find this story encouraging. It's one of the first Fan Fiction stories from back when VV1 was new, and it's very touching.