DD1 I put on 15 kgs..I had heaps of fluid retention, and I did not get back to my pre-preg weight of 65kgs before falling pregnant with angel baby. When I lost bub I was 72kgs, then fell pregnant with DD2 (only 2 weeks post d/c), lost 5kgs due to ms and then gained 13kgs. Either way I ended up 80kgs for both girls.

If you are being sensible and doing everything in moderation then don't worry, your body is doing a very important job and don't stress after you have bub either. There is plenty of time to get back in shape. It has taken me 8 months after giving birth and getting used to having 2 children to even feel like getting on my treadmil.