Nasal bone? NT? Scared!

I will have that appointment in a few days. I'm scared to death. I worry a lot. First time pregnant with so many complications. This ultrasound was at 12.3 weeks. I feel I don't see the nasal bone. It is supposed to show the nasal tip, is there, nasal skin, is there, but under it I don't see the nasal bone. It is supposed to show like an equal sign =

Also that NT seems big.

Seriously I'm sick to my stomach. I know some of you will say " wait" but is normal to worry.... please don't judge. Thanks in advance.