i gained 12 kgs during pg. i lost all that 8 days after he was born. i didn't lose anymore til he was 10 months old, now i am 9 kilos under my pre-pg weight. i only bf for 5 weeks, so i don't really know if it was bf that made me lose all the pg weight so quickly or if i was just a lucky woman who has a body that goes back quickly. i was fully expecting to stay size 18 for a couple of years, i had no intention on tryingto lose the weight any sooner, it just happened. So i guess all women are different, don't try to rush into losing weight though, i agree with the whole' it tok 9 months to gain, it will take at lest 9months to lose it again'.