When choosing a size, think of a panty you are wearing comfortably currently. The secret is that it should not pull or push anywhere…comfort is key! Our pattern is designed to accommodate a growing or post baby tum, so the emphasis is more on thighs and bottom as weight tends to gain easier there. If you still have a considerable time of pregnancy left, expecting twins, or you naturally gain weight easily, rather take one bigger size. If you are still uncertain, feel free to contact us.