Weight gain/haven’t “popped” yet

Anyone else has minimal weight gain and still not have a fully “popped” belly? I’ll be 23 weeks tomorrow and it feels like my weight is stuck and my belly hasn’t rounded out yet. I’m also T1D so my blood sugars have been closely regulated the whole time. I can feel him kicking sporadically (anterior placenta) which helps ease my paranoia, just seems like I’m behind if that makes sense?