Weight gain???

CS • First time mommy of the most amazing little girl💖
Have you ladies gained any weight yet? 
I'm 5'4, and I've been between 109 and 112 so far. I'm currently 9w6d and weighed in at 109 yesterday. I guess I'm just a little concerned that I'm about to begin the 2nd trimester and still haven't gained anything. My boobs and belly are growing for sure but it doesn't show up on the scale.