I'm shorter too and I think that's why I showed earlier. one of my friends is 5'11 and you could barely tell she was pregnant til 30 weeks. everyone's different for sure! when do you find out what you are having?
I'm 17 weeks too and have been getting told how big my bump is or oh are you having twins... it was bothering me but now I just embrace that I show early instead of late. you look great :)