Belly band question!! :)

Mara • Mom of four and happily married💜
Okay, so I'm a petite person & this is my 4th pregnancy it seems like my belly is growing much bigger, much faster than with my previous pregnancies. I'm 20 weeks & 3 days & the pressure is getting unbearable, it feels like he's gonna claw his way out. Lol I guess even though I have a reason to buy a belly band, is it odd for someone who is only 20 weeks to need one? Should I consult with my doctor?. 
TIA💕