By Amber Goodhand - Breaking Celebrity News Reporter

Kimberly Stewart is thrilled to be a new mother, but Breaking Celebrity News has exclusively learned the rocker's daughter still wishes it had worked out with baby daddy, Benico del Toro.

The 32-year-old's pregnancy shocked the public -- and the couple who the insider says only hooked up for a month, casually, before getting pregnant.

"Kim and Benicio still see each other and talk for the sake of the baby, but it's not romantic and Kim wishes it were," the source told Breaking Celebrity News.

"They weren't really ever dating to begin with, just sort of hooking up for a month, then boom -- she was pregnant."

According to the source, Kimberly is a wonderful mother to baby Delilah, who was born in Los Angeles on August 21.

"It was a tough birth for Kim, but she's a tough cookie," the source said.

"I think having any more children is the last thing on her mind right now!"

As for Kimberly's famous dad, Rod Stewart, the source said he couldn't be more excited about the new addition to their family.