Belly bands

Carrie
First time mom to be & not wanting to convert to maternity clothes, as I personally feel it's a little early for me. Down 7lbs since my bfp, but the pants are starting to feel a little snug (especially jeans). 
 I'm doing the rubber band trick to give myself a little room, but am self conscious that it will show. 
Anyways, have any of you tried the belly bands to wear over unzipped jeans? What do you think & what brands do you recommend? I'm a size 20, so I also need a brand that is big enough for my large self.