I had put on a whopping 39-40kg with my pg. 8-[
Within 2 weeks of birth I had dropped 12 kg.
Within the next year I had dropped another 9kg, without doing that much towards trying to lose it.
After the one year mark I really started putting more effort in, and I managed to lose another 6 kg. But now am stuck at more than 10kg more than my pre-pg weight (though I was underweight before pg)

I say just to give it more time Fenella. I have heard a lot of women recently say that their bodies seem to hold onto a bit of the excess weight when BFing, just to have those extra fat-stores JIC.

But definately dont be too hard on yourself - as you said, its only been seven weeks! If you keep up the good eating and excercise habits the weight is sure to start dropping off soon.

Goodluck