BethennyBethenny Frankel of the 'Real Housewives of New York City' has given birth to a baby girl a month earlier than expected. The author and reality star, who married Jason Hoppy in March, went into labor on Friday. "Bethenny and Jason are proud to welcome their new baby girl, Bryn Hoppy, born at 8AM in New York City," their rep told PEOPLE. "She is a 4 lb. 12 oz., healthy baby. Bryn, mom, dad and [their dog] Cookie are all very happy."

Her fellow 'Housewife' and current frenemy Jill Zarin inadvertently broke the news online, but she mistakenly said Frankel had a boy. "Heard Bethenny had a baby boy," she wrote on Facebook. "So happy for her and Jason. So happy for them."

On Friday afternoon -- at the exact time Life & Style claimed her water broke -- Frankel sent a message to her Twitter followers, thanking them for all their kind thoughts as she labored at New York Presbyterian Hospital: "Thanks so much everyone. your messages were so thoughtful and sweet. I read every one. I love you guys!"