I used to be a size 10,before children.I 'm sometimes a size 18 in between babies.I did get really good after number three,bought an exercise video and did the exercise everyday,also simply calorie counting helped a lot,just off the packets.I lost about two stone and was about 12-14 by the time she was 8 months.I hope to repeat that after this one.Exercise can work if you have the time and once you start seeing results it gives you the incentive to keep at it.Saying that,the closest thing I got to exercise since I had the last three is buying a Davina McCall DVD and taking the wrapper off.
I hope you achieve your goal,I certainly intend to try harder next time cos I can remember how good it felt when it worked.