Maine Medical Center's baby boom is now a baby explosion.The hospital said 11 staff members in the emergency room department are pregnant.The announcement comes a few days after the hospital said nine nurses at its labor and delivery unit are expecting babies in the next few months.A photo of eight of the nine labor and delivery nurses went viral.A member of the ER department shared a photo of nine of the 11 pregnant staff members.They include nurses, doctors and technicians.Congratulations to all of the moms to be.