LOSING WEIGHT, AGAIN!

I’ve been taking this meal replacement for about 3 weeks now.  I was just wondering why I only lost 4 lbs.  I am not cheating and I am also exercising.  What am I doing wrong?  Losing weight is a constant struggle for me.  After having 3 children, I think it will be very difiicult to lose those extra pounds especially on the tummy area.   I am even thinking of getting a tummy tuck in the near future when I already have the moolah. I am not going to discuss what weight loss product I am using right now.  I will just give you an update once I see big results.