You need to quit eating so much and start working out. It's as simple as that. People make this stuff to complicated. When you are starving for lunch or supper, skip it. A missed mill won't hurt you, if you're carrying a few extra pounds. Skip meals and let that baby breast feed the heck out of you. That will pull the fat ("Post baby weight" I think is what you called it) off.
I have to assume this is a joke...if so, ha ha
In case it isnt....
Fasting here and there is one thing, intentionally skipping meals in hopes of losing weight is not smart. Especially after the body is recovering from having a baby.
And it really IS that complicated-if you don't want to completely screw your body up. Eating small meals/snacks every few hours throughout the day is the only way...of course also being careful of WHAT you eat. What works for some (food wise) will not work for others, try different things...when you start to see the weight come off and you feel more energetic, you'll know you found your niche.
Before we realized I have severe food allergies, my solution to being able to be on the road and work was to just eat at night when I got home, which usually wasn't until very late. It was for no reason other than to avoid getting sick. All I knew was I'd eat and get very sick for hours. So, eliminate food during the day=eliminate the inconvenience. Unfortunately, even though I am very active, I was eating very little, but actually gaining weight-which made no sense from a "logical" standpoint. But, our system is very very complex so you can't think in basic terms.
Once we realized what foods I cannot go near and eliminate them entirely (dairy, gluten, especially flour/wheat products which my system treats like botulism) I was able to actually eat a small breakfast and go on the road without fear of getting violently ill. I can pack a small cooler with water, fruit and some other stuff so I can have lunch on the road if necessary.
If ever in doubt as to an eating regiment, how much to eat, what to eat and when, it doesn't hurt to consult with a nutritionist.