Sometimes I feel like I am not pregnant

L
I am about 15 weeks (newly 2nd trimester member) and no bump at all. I am also still down a few pounds from pre-pregnancy because first trimester was so hard to want to eat. Anyway, I wish I would start showing soon but I have a feeling I won't until like 20 weeks. Is anyone else in the same boat of wishing time would go faster or could feel baby kick or something?? I am thankful that everything seems to be great but I want some reassurance that baby is growing!