Is this normal??

Shaydi • :) baby dust to you all
i am 4 depo and this is what I look like, I've had a belly like this for a while now so I know this isn't from pregnancy it's just my belly but it's nor flat and it should be being I'm only 143 pounds and I'm 181/2 years old, but it looks like it did it a little bigger or bolted I should say the past couple days.