I'm small too. Same size as u in fact. We tend to gain faster and hold more water. We gotta put on a little extra cause we lack some of that weight. Lol. I've gained 8 pounds already.
I was so bloated at the beginning it looks like the baby bump. But the real one didn't start growing for me until 17 weeks or so.
I think it's still a little early for you.
Well I'm just curious because I literally am retaining so much water that I look like I'm 25 weeks already. I have to pee all the time already. My appetite is so bad I'm getting up at night to eat snacks. I'm a small girl.. a size 1. Always have been small. But I'm eating 3xs as much as I did with my first 2. My clothes are getting tighter. Idk I just have mothers intuition that something about this one is different.
Or u could turn out like me. Lol. I'm 9w3d and my uterus is 12+ cm above my pubic bone. Maybe 5 cm below my belly button. Either there is two babies in there. Or a really big baby. Lol. U/s on the 11th to see why I so big. Lol. But I think u got a while to wait before u feel urs. :)
It will pop out above your pelvic bone around 12 weeks pregnant.
Ur uterus is still down below ur pelvis at that stage of pregnancy so u won't be able to feel it.