Target is hopeless too, for tops try katies and crossroads I am an 18 to 20 too and the xxl are sometimes too big. They have designs that have plenty of room for your bump as it grows. Maybe you can find bottoms at target otherwise leggings are a godsend. I got my maternity jeans from big w but they are from last time. A lot of the girls recommend jeans west for jeans, but not sure what the biggest size is.