Nina... I know its a huge shock to the system, but I bet you look absolutely beautiful, healthy and glowing... not like a whale at all!

Because you were very light to begin with, its pretty natural that your body is going to gain extra weight during pg, for both yours and the babies health.

In my first pg (not this one) I started off around 55kg, and was 170cm (so still a fair bit shorter than you) and I managed to put on a grand total of 42+kg by the 9th month... (due to many other factors too). But anyway, you aren't going to gain as much as I did , and where you are now sounds spot on and healthy.