But experts are divided over whether blizzard baby booms are real.
"Absolutely," said Dr. Laura Corio, an OB/GYN at Mount Sinai Hospital in New York City. "When we had [Hurricane] Irene, nine months later, I was so busy."
"I don't think it's a myth. I really don't," she said. "I think these things do happen if you look back."
ABC News reported in 2013 that hospitals in Manhattan, including St. Luke's-Roosevelt Hospital, saw a 10 percent to 20 percent uptick in births following the fall 2012 superstorm, but others, like Mt. Sinai Hospital, said there was no such thing as a Sandy baby boom.
"It's kind of fun to speculate and to imagine that people are bored and they make like bunnies," Greenfield said. "But the thing is, a lot of these things are reporting bias."
By that, she means researchers see a spike in births and go back nine months to try to find the cause. But there are certainly storms and events where there are no birth spikes nine months later, she said.
Dr. Jennifer Ashton, a senior medical contributor for ABC News and practicing OB/GYN, agreed there's "no medical basis" for the blizzard baby myth. Birth rates vary naturally, Greenfield said.