(CBS/AP) SAN DIEGO - Doctors told Cynthia Sigler she'd give birth to a big baby boy. But the Southern California woman didn't know just how big they were talking.
Sigler, of Vista, Calif., gave birth Thursday to her son Jayden who weighed in at 13 pounds, 14 ounces.
The North County Times reported Saturday that his mom's immediate reaction following the cesarean section was, "How'd he fit?
Doctors initially estimated that Jayden would weigh about 9 pounds, but that number jumped to 11 by early March, the mother told the newspaper.
Dr. Jerald White, who delivered the baby at Tri-City Medical Center, said Jayden was the biggest of the 20,000 newborns he has helped usher into the world since he started practicing in 1961.
White said delivering a very large baby via cesarean section is more challenging, but "it wasn't so difficult that it created a problem for anybody."
Sigler said her own family didn't believe her at first - she convinced her cousin it wasn't a joke only after showing a photo of the scale readout.
Jayden's birth weight is almost twice that of his sister, Jailyn, now 2 1/2. She was 7 pounds, 2 ounces at birth.
Sigler said she'll have to exchange all the baby clothes she bought for larger sizes.
A hospital official was unable to immediately determine Friday whether Jayden was the largest baby ever delivered there. It was also not clear where the newborn ranks among the largest babies also born in San Diego County.
Young Jayden joins a recent spate of big babies who've made headlines. In February, a JaMichael Brown of Texas, who weighed 16 pounds and one ounce at his July birth.
According to the Guinness Book of World Records, the biggest newborn baby ever born weighed 23 pounds, 12 ounces, but died 11 hours later.