Worried about my bump?!

Erica
So I'm almost 19 weeks with my second baby, and I still haven't popped ! I started showing much more with my first child 4 years ago, my bump only gets bigger if I eat a lot during that day and it's only bloat.. I thought I was supposed to be showing more? I also have only felt the baby move one time very briefly and haven't felt it since.. I have a Dr apt on Wednesday and I'll be asking about it then, but had anyone else start show way later in their second pregnancy?