The first thing for me to grow was my chest (hubby was amazed by this and still is). Before being pregnant I was a size 11/12 (not fat, but not skinny, so I was curvy I guess you could say). I'm 5'5 and my bra size was 38 D, now I am wearing a bra that just works and it's a DD, but even it's filled out all the way (yikes). I'm trying to remember when my bump just poked out, I guess that was probably between 20-22 weeks I would say. Once your belly pops, it's out there on display and there is no hiding it. Not long after that you automatically start waddling cause your back hurts from holding up those big boobies.

You will get there soon enough. Enjoy being comfortable.