Had my first ultrasound (Friday) and measured earlier than I thought at 10+5, baby had a very healthy heart beat and was moving there legs. But the women doing the ultrasound did say there was a bit of fluid at the back of baby's neck but as I was earlier on than I thought she was unable to measure this accurately, I have to go back for blood tests on Monday and she mentioned having another scan a week on. I am very worried not being told an awful lot and this being my first pregnancy(I'm 19) wondering if this has happened to anyone else. Tia