depend for ur body..for me i'm use it when im 20week preggy... that time went im walking i feel not comfortable then feel like very pain at my pelvis part before i know that i have pp type 3 after 26week preggy..then my husband buy it for me..and its really work to me when use it...after use it..u feel ok...dan xde rs nk terberanak cepat bila berjalan...dan not give us pressure for the certain part in our body...so its good for us to wear it went preggy..doc also say its good to wear n use it when u preggy... support ur belly