Everyone is different! Ftm I'm 15 weeks and I'm showing like I'm 6 months. And I'm 5'6 about 133 pounds. So it all depends on how your body is and baby! :) you will be showing soon enough! Goodluck
I am 5'2 1/2 and weighed around 100lbs and didn't start showing till I was 19 weeks and now i am getting bigger everyday it feels like.
Since it's your first, a lot of people don't start showing until wayyyy later in their pregnancy, even if you don't weigh very much.
I'm a ftm and started showing around 18ish weeks, but I'm also chunky. lol