Sure! Here it is! https://www.amazon.com/gp/product/B07WK2NNR6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I honestly haven't tried any other options due to this one working well. It's just a little piece of plastic you slide under your ring after you put it on. I don't want to size mine down for the exact same reason--I'd like it to fit when I'm pregnant.

I highly recommend these! They're very comfortable and come with several different sizes to match your band width. https://www.amazon.com/dp/B07WK2NNR6/ref=cm_sw_r_apan_glt_i_EGEVR1HJP40GR642R3EW?_encoding=UTF8&psc=1