The 44-year-old actress, who gave birth to Eli Benjamin on Aug. 24, tells People that dad is her boyfriend, John Wahl. Dratch said the two met last year at a bar and she was shocked to find out she was pregnant six months later.
"I had bought into all this stuff about, 'Once you're over 40...' " Dratch said of her chances of conception. "I'd gone through the whole process of letting go of [the idea of having kids]."
Dratch and Wahl live together in New York. Dratch appeared on the live episode of 30 Rock earlier this month.