Despite sobering warnings from the CDC that pregnant women are seven times as likely to be hospitalized with H1N1 and four times as likely to die from it, some women -- with the advice of their doctors -- are choosing not to get the vaccine because they fear its potential effects on their unborn babies.
"If I had heard a story like this when I was expecting I definitely would have gotten the vaccine if it was available," McHugh said.
McHugh knows how lucky she is, and how lucky the family is to have baby Liam.
"He's perfect," she said.
ABC News Medical Unit coordinating producer Dan Childs and ABC News' Katie Escherich contributed to this report.