how many of you ladies...

Had a bubble on the back of your babies neck and it turned out to be nothing?? I'm 13 weeks and went for a screening yesterday and the baby's neck was supposed to measure 1.7 mm but the bubble was almost at 5 mm. I'm so scared something is wrong with my baby. I need some positive outcomes of this. I'm seeing a genetics counselor today and getting a lot of bloodwork done and possibly the test they do at cvs. I'm a first time mom I just need to hear some positive outcomes...