I wore lowrise shorts the whole time (i am just a few days to my due date) and it was fine for me.. but with pants i have the kind that go over your belly, but not the pannel kind. i had one pair that was pannel and those were the only ones that got too small. i would recommend the kind with just the extra cloth that go up over your belly (but NOT the pannel.. they were uncomfy for me!)
and i also have pants(regular.. not maternity) that have elastic waistband (kinda like sweatpants or jogging pants) and they just sit right below my belly.. i find those are overall the most comfy!! but i feel like a bum when i wear them usually b/c they are kinda like i said sweatpants, not realy my style. but they are good for not going anywhere special.
it realy depends on the way that you carry the baby and how big you get and your personal choice about the type of pants that you are most comfortable in. hope u find something u like!
EDD Sept. 21. It's a boy!! Tyler Shawn is my lil' angel