Blighted ovum.. has anyone been through it


I had my first 8 weeks ultrasound today, they said the sac was measuring seven weeks but there was no baby. Has anyone ever gone through a blighted ovum . Did you wait a few Weeks .did you have a dnc did you let it pass.. did a baby show up . Im so lost at words.. they schedule me to have blood work today and then on sat to see if my levels have changed and if so then a ultrasound on Tuesday.