my denim puzzle

maternity jeans puzzle me. when is the right time to buy a roll panel kind or be content with just a size bigger?

in the past 3 months, i have had to get myself pairs 2 sizes bigger than my old ones in the hope that i can use those longer than just a month. but up til now, i haven't quite filled out the butt part, but the waist part is comfy and snug enough. i've been looking at maternity jeans from Old Navy, Gap, and quite recently, Thyme. they've all got maternity jeans with stretchy garter-like waists (not quite like the kind you wear when you're a kid though), ones with straight belly bands, and ones with roll panels. who would have thought maternity jeans would be this diverse!

although it's tempting to buy one of each kind every time i go up a size, it's costly so to hopefully simplify matters, i hope that i can just get one to last me thru the whole stretch. pwede kaya? i hope so!