NaeNae, there is a book called "I can make you thin" by Paul McKenna and it's not a diet. There are four concepts which naturally thin people follow:

1. Eat when you're hungry.
2. Eat what you want, not what you think you should.
3. Eat slowly, consciously and enjoy every mouthful.
4. STOP when you feel full.

I've lost 4kg in 6 weeks doing it this way and lost a ton of weight a few years back.
The book is awesome and gets you thinking about food differently and goes into why faddy diets don't work. It's not what you're necessarily eating that needs to change it's the way you think about food. Food is fuel, nothing else.

It also goes into ways to beat cravings.

It's awesome and can't recommend it enough and by doing it this way you're not going to affect your milk supply. I'm still b/f DD at least 10 times per day and my supply is still great.
xx