Doctors have told Bobby Brown that there's nothing more they can do for his daughter Bobbi Kristina Brown, and that it's time to take her off of life support.

The 21-year-old aspiring singer, who is the daughter of the late Whitney Houston, was placed under a medically induced coma on Monday after being found face down in her bathtub. On Tuesday she was transferred to Emory University Hospital, which has a top notch neurological department, but it appears as though medical professionals are not optimistic about her condition.

Today is Bobby Brown's birthday, and according to TMZ he's going to wait until the weekend to make the decision. The site reports that he's "hopeful his daughter can beat the odds because someone in his extended family battled out of a coma after 8 days."

A rep for the family said in a statement on Tuesday, "Bobbi Kristina is fighting for her life and is surrounded by immediate family. As her father already stated, we are asking you to honor our request for privacy during this difficult time." On Monday evening a source close to the family told CNN that Brown had "opened and closed her eyes a few times," but noted that doctors reportedly told family members "not to read too much into it."