Sara, I would suggest that when you bring Macy in or even before if you have a spot set up for her, bring a litter box to her, place her in it and take her paw and "dig" for her....I think she will get the idea that that is the place to do her business. I did that with Tucker, Mystic and Abner and they never had an accident in the house.

I have never had the privledge to have a pregnant momma but my mom's Tiger-Lily had her kittens and we had her spayed about 2-3months after she had her litter.

Good luck and keep us posted.