Holly Madison follow's Kate Middleton's lead: Pregnant Playmate hospitalized over morning sickness
Madison, who has been showing off her baby bump around Las Vegas, tweeted a photo of herself in fuzzy pajamas with an IV in her arm. The caption reads, "Almost 7 months and morning sickness took hold! Glad to be otherwise ok, tho."
Prince William's baby mama, Kate, is also in a London hospital for pregnancy sickness, and is expected to remain there for several days.