I'm wondering how big you can be and still fit into S/M size Goodnites? I've fit into S/M Underjams easily but I've heard that the sides of the Goodnites aren't as stretchy. I'd like to try these next time I buy diapers (I'm currently finishing off a pack of Baby Dry Size 6) and would like to get S/M instead of L/XL as you get more in a pack, and I think the designs are much cuter (I'm an AB as well as a DL). I have about a 31" waist and as stated earlier I can fit into size 6 baby diapers alright, though they are a bit small on me. Please tell me if you think I will fit.