Help with my size please!

Ok so I had my son 2 years ago I gained weight like crazy and the last pair of pants and shorts are fitting ok but I’m not totally comfortable on them so I’d like to get new clothes the issue is idk my weight and my size... like it’s so confusing, I measured myself and my waist is 38.5 and my hips are 43... now I’ve been looking at size charts but they don’t seem to have my size? Lol like my waist is maybe too big? I’ll add an example of what I’ve been looking at and thanks in advance also I’m 5.2 if that helps lol I’m about to start loosing wait but I need ASAP a new pair of either shorts or pants and since I can only shop online it’s been a nightmare