I wa a similiar height/weight to you. My belly started being obvious about 20weeks, but then if you didn't know I was pregnant you would think I had just put on weight. Which I had. My butt started showing about 10weeks I put on about 6kg in the first trimester due to m/s. When I ate I didn't feel sick and I went off vegies and chocolate and craved meat, carbs and chips. I had a boy. My weight gain did slow down a bit thankfully. All up I gained about 15-16kg. only got a few kilos to go now but don't look too bad and can get back into a lot of my pre-preg clothes, nto looking exactly how i'd like but not too bad.

Good luck and happy bump growing