HaBO: A Saga Of Many Daughters. Many, Many Daughters

Ready for a fun filled day of HaBO-lation? I've got reader requests for books they're looking for, sans title or author, or many details. It's fun for everyone! 

Hoping you can help a bitch out here! There's this romance novel I read when I was around fifteen or sixteen (1999 or 2000) that I read at my aunt's house, and I've always wanted my own copy, but I can't remember the title! I think it was relatively new at that time, but could go back as far as 1990.

It's split into five parts (prologue, epilogue, three “books” in the middle). It starts with an old guy and his wife when the wife starts scheming to get their three daughters married because she wants grandchildren, and he's just like, “Oh, no.”

Then each of the three books in the middle is dedicated to the love story of one of each of the daughters. The epilogue was the happily ever after with all three daughters, their husbands, and the youngest daughter gives birth unexpectedly at her parents' house at that part. (I very specifically remember a joke about her having been in labor all day without saying anything, and when asked why, she said, “I thought it was false labor.” “Right, which you would know after the six children you've had.”)

I'm pretty sure the oldest daughter's name was Catherine, I remember she was planning to get artificially inseminated and become a single mom when she meets her guy, and I'm pretty sure his name was Griffin.

I remember a scene when they're about to have sex for the first time, he asks if she's on the pill and she briefly considers not saying anything and just letting him get her pregnant, but decides not to and they use a condom. I also think he might've had the very unromantic profession of used car salesman, but that part, I'm hazier on.

I remember literally nothing about the middle daughter's story, sorry. 🙁

The youngest daughter's name was Abbey. (Possibly a different spelling.) I remember *that* because the family's last name is Parrish (or Parish, not sure) and she makes a joke about how her name sounds like a church. I remember that her guy was a doctor (and I think her dad might've been a doctor as well). Abbey's the one who gives birth in the epilogue, and I seem to recall her dad and her husband tag-teaming the delivery.

I believe Catherine had also had a baby with Griffin by the epilogue, annnnnd for some reason, I think this whole book was Christmas-themed. Like it was a Christmas special, and Christmas tied into each of the plots somehow, but I'm less sure about that. I don't think it was Harlequin or Silhouette, but it might've been!

Anyone got anything? I've tried Googling books with Catherine and Abbey Parrish, but besides that I'm not sure I'm spelling the names right, apparently those are popular names for romance heroines! Help me, please?  

This sounds like an interconnected series, but that wouldn't have been all in one book. Do you recognize this description?