I took an herbal called Purify by the Life Tree. Also I added Wormwood . I got quite sick doing it, so I'd maybe wait until the baby is weaned if you possibly can.
I used fresh Rosemary, just bring it to a boil, and let it sit ten nimutes or so, and then drink it. Don't make it too strong to begin with. You an also used dried rosemary. I grow it in my garden, and usually you can buy a start in the grocery stores.