wearing a sweating belt early pregnancy ..

Ma
Hi, 
I'm sure it's ok but I was wondering what you others moms gym rats did. 
I'm almost 6 weeks and I ate so much and been so lazy lately, that I'm having a little carb pouch..
I have been wearing a sweating belt while working out, to help loosing in that belly area so I can have a beautiful bump. 
What do y'all think ? 
Do or don't ?