Your doctor sounds very insensitive.

With my first child, I put on 14 kgs (he weighed 4kgs at birth), and then with my daughter nearly dobled my body weight! I weighed 53kgs when I fell pregnant with her, and gained 49kgs, but this is because I craved oil. I would eat butter and margarine with a spoon, and drink olive oil. I wouldn't recommend that kind of weight gain because it did cause complications in my third trimester.

Anyway, with my third baby, I gained 17kgs, and now i am 30 wks with my 4th and I have gained 6kgs.

All my babies are healthy, and I regained my pre-pregnancy shape within 3 months (even after my daughter)