Baby's weight

Dina • Fri, Apr 15 • First time mom very exited !!! Due date 9/12/16

So I went and had my long sono appointment today. 💕💕💕💕 she's 9 ounces at 18w3d according to my app she's suppose to be 6.7 ounces. Gosh 😅 she's going to be a chunky baby.

Do any of you ladies know how to change the baby's weight on here ?