that's great! Don't stress that you don't have a big bump yet, you'll get one! you'll just pop out overnight! :)
Yeah that is what I was hoping for! The ultrasound tech said that everything was moving along just fine and I have a healthy looking, active baby. And I can understand that. I was a cheerleader all throughout high school and took my physique very seriously after high school, especially my abdomen area.
BUT, from your one picture, it's clear your fundus, top of your bump, is where it should be for 19 weeks so it looks like baby is growing good! :)
Mine always showed wayyyy more in the morning, way. And also I looked pretty small most of my pregnancy, until like 26 weeks and she changed positions and it popped right out, and I got more uncomfortable haha. Some people don't show much and it's actually a good thing, it means your abs were better toned to start with. I know the pregnant belly is a beautiful thing and you will get one, but be happy it's less weight to lose after!