Has anyone else had a similar experience at 6 week check up? Baby weight and length between 9th-25th centile but HC is 91st :/ At birth her HC was on 50th. The HCA didn't seem concerned and said she would measure again in a month but I am paranoid this indicates hydrocephalus. I hadn't noticed her head looked big/out of proportion though, so it is only the measurement today that is worrying me!