I am 16 weeks pregnant with my third (following a twin pregnancy, so this is my second pregnancy). I thought I was crazy, but I switched to maternity pants at 4.5 weeks. When I was only 6 weeks, two coworkers asked my friend if I was pregnant (so, I knew I wasn't crazy, and, yes, I was clearly showing). Then, at 7 weeks, another coworker asked my friend if I was pregnant. We announced at 9 weeks, but even before I started showing, that was our plan. I knew from others' experiences that I would show much sooner (especially after having twins). Now, at 16 weeks, I still look way farther than I am, but I think it's the way I carry.