Nuchal fold?

Apparently mine is on the edge of normal at 3.0mm 13weeks pregnant baby at 6.6. Even I'm only 26 and have no history of any chromosomal disorders in my family or hubby's. I was maintaining my cool and just trying to think positively and the doctor was trying to freak me our or something. My bloodwork will be ready next Thursday and she said she would give me the probabilities then. I managed to keep my cool and reassure my hubby but honestly I'm starting to get worried. Anyone has gone through the same? What was your outcome?