One hundred and thirteen participants (56 in the control group and 57 in the intervention group) completed their program and delivered babies before December 31, 2011. All participants in the intervention group met with the dietitian at baseline and at 2 months after. These women attended the group exercise and exercise regularly at home according to the protocol. No withdraw from both intervention and control groups. In the intervention group, 30 women had their pre-pregnancy BMI ≤24.9, and 27 women had their pre-pregnancy BMI ≥25. In the control group, 27 women had their pre-pregnancy BMI ≤24.9 and 29 women had pre-pregnancy BMI ≥ 25. No significant difference was detected in pre-pregnancy BMI, the proportions of First Nations women, or annual family income between the control and intervention groups