I am only showing a little!

Nancy • My daughter Ava Grace is my world! 05.04.16 Expecting March 2019
In public, nobody even notices I'm pregnant yet and I'm 5 months!! I'm getting annoyed now! I just want to show off my bump! I'm so excited that I'm pregnant but I only gained 7lbs, and look like this! Is this normal for anyone else? I'm 18weeks2days! 
Thanks!