Just Call Sarah Palin "Grandma"

Sarah Palin rocked the political world this summer when the Alaska governor and newly-tapped Republican Vice Presidential nominee announced her unwed teenage daughter was pregnant.

Now, Bristol Palin, 18, has made Palin a grandmother, giving birth to Tripp Easton Mitchell Johnston, who weighed in at seven pounds, four ounces, according to People.com.

The Web site says Colleen Jones, the sister of Bristol's grandmother, Sally Heath, confirmed the news. "The baby is fine and Bristol is doing well. Everyone is excited," People.com quotes Jones as saying.

The father is Levi Johnston, 18, a former hockey player at Alaska's Wasilla High School. Wasilla is the Palins' hometown.

On The Early Show Tuesday, J.D. Heyman, People magazine assistant managing editor, told substitute co-anchor and regular Saturday co-anchor Chris Wragge, "The family is overjoyed. ... They're being very private about it. Sarah Palin has not commented. Some people close to Sarah Palin have, and they seem to be overjoyed. We'll see what happens next."

Asked by Wragge if Bristol and Levi plan to get married and finish high school, Heyman replied, "I think all of that is in the cards. Levi is an apprentice electrician. Bristol is studying via correspondence course to finish her high school diploma, and they have said they will marry in 2009. So we'll see."

"This is a very close-knit family," Heyman continued. "Bristol is a typical teenager in many ways. Clearly, they (family members) were not sort of schooled for prime time. They were a family that was kind of thrust into this, and she was in many ways, a very typical Alaskan teen."

Noting that Levi's mother was arrested earlier this month on felony drug charges, Heyman said it's "not very clear" how close the two families are. " ... Certainly," he added, "these are people with complicated lives. They've been thrust into the limelight without a lot of preparation, and when that happens, you see a lot of, you know, personal messiness. I think, clearly, everyone right now is focused on this baby, and hopefully that will remain the focus."

Heyman says there doesn't appear to be any race among paparazzi to get the first photos of Tripp: "Listen. This is a very different kind of family. These people are having, you know, a private happy family moment, and certainly we wish them well. But I wouldn't say this is the kind of celebrity baby moment that many people anticipate."

Early Show national correspondent Hattie Kauffman pointed out that Tripp will have a playmate close to his own age: Earlier this year, Sarah Palin herself gave birth to her son, Trig.