Hello! This is my first pregnancy, I'm only 6 weeks along, and I'm already showing. My tummy is noticeably larger, and has already firmed up. I'm starting to wonder if this is normal, or if something else is going on. I'm thinking that I'm farther along that I thought, I'm having twins, or it is just due to my small size? I'm 5'3" and only 105 pounds. My first appointment isn't for a few weeks. Anyone else start showing this early? Help!