MAUREEN: Okay, I’m drunk, which is why I’m telling you that we were very shocked when you told us because you are so not a baby person.
SHERRY: Oh, I’m still not. I mean, she’s all mine when she’s got the legs to dance, but Christopher’s the baby person.
Previously, Sherry told Rory she wanted at least two children, and was considering becoming a single mother using a sperm donor, she wanted to be a mother so badly. Now she says she’s not a baby person, and later tells Lorelai she considered an abortion.
It’s possible she means that although she wants to be a mother, she doesn’t particularly care for babies, and considering having an abortion in a shaky relationship is normal. However, it does sound like Sherry simply misrepresented herself to Rory (and Christopher?).
Lorelai and Rory must be stunned to hear that Christopher is a “baby person”. Really? Either Christopher really does feel as if he missed out on Rory’s babyhood, or that’s the story he’s telling Sherry. Maybe both Sherry and Christopher have been dishonest with each other.
The fact that Sherry doesn’t see herself as a baby person is a foreshadowing of what occurs after she becomes a mother.
The Annotated Gilmore Girls 