I'm so sorry I've just now gotten caught up with "Future Perfect" -- otherwise, I would've commented long ago!
Excellent, excellent premise. I love how you've characterized Lois here: she's her usual skeptical, strong-willed self, but she's also willing to make an honest go at being a mom for the first time in her memory. My heart aches for her and the rest of the family, but you've played Lois so well, even down to the smallest detail, like the turquoise toothbrush reference. Which I loved.
And Clark! Talk about the perfect husband! (Well, aside from that whole by-the-way-honey-I'm-Superman business that she'll eventually have to hear). *melts*
Eep. Sorry, I think I'm babbling. I just know how nerve-wracking it can be to post a first fic, as I recently did, and want to let you know you're doing a great job with this story. Please, keep writing!