Hi M., congrats for both your daughter AND losing the weight... that's great!
A couple of things that helped me were:
Up your fiber intake, because fiber will help prevent some of the fat that you consume from being absorbed... I did this by adding benefiber to my morning coffee. *downside is that you can get a little gassy if you take too much! :)
Do little things during your day that make your body work a bit harder... take the stairs instead of the elevator, carry your daughter instead of putting her in the stroller... park in the far spot at the grocery store - remember, you are just a few steps from staying the skinny girl you are, and it will be easier.
Be active with your daughter... take a mom and baby yoga class, or something, but get out there and DO instead of staying in...
That's my best advise... remember you always WERE a skinny girl, you just had to let her out! :)
-H.