Nerves before 20wk scan

Liz • 25, pregnant for the first time.

Tomorrow we're going in for our 20wk scan, and we're (hopefully) finding out the sex of our baby, thing is, I am kind of panicing! This sounds kind of weird, but up till this point, I have been able to laugh of my anxieties about having our first child.

Has anyone else felt this way? Is it normal to be excited and terrified at the same time?