I'm 5'2, was 127lb prior to pregnancy, and currently 6.5 months along. I usually purchase xs/s from old navy before baby. I haven't changed too much in size other than my tummy and chest area. Got the black and white stripes in size small and although it's a bit long, I normally just pull it up a bi...t and it hides well due to the stripes. Some people mentioned the tshirt is a bit thin/see through, but the black and white stripes aren't see through at all. I wear black/gray bras underneath all the time and can't see anything. I washed it (no drying) and it kept it's size and shape well. Super comfy, stylish enough and can keep wearing post pregnancy. Worth it especially when it's on sale!