Fluid found in first tri scan

#advicepls #pregnancy Im now in my first trimester scan between week 11+ 5 days(base on calendar) - 12 weeks 5 days(base on scan). First time going to a gov hospital due to com subsidy. Radiographer notice white fluid beside the neck approx 2.+ length. Gynae Consultanted Senior gynae and asking for another rescan. Does any mommy occur such issue during pregnancy and what do i have to prepare mentally. Im quite worry.