What’s up with my belly button 😂

I am 28wks & as most of us have during pregnancy, I have a major outtie. Mine started to pop out around 14wks when I would eat a lot of food now it’s out pretty much all the time however sometimes when I wake up it’ll be back inside lol. Just now after waking up my boo & I were cuddling & he started rubbing my belly until he noticed that my belly button wasn’t out... y’all he got so scared he was like, “MAKE IT COME BACK OUT WHY IS IT LIKE THAT” cus he’s so used to me having an outtie now he thought there was something wrong 😂😂😂 it took a few minutes but now it’s back out. Is this normal? Lmao or am I the only one this happens to? It’s like a lil turtle head 😂