I to am egaer to TTC # 3, I have 2 beautiful little girls, 2 1/2 7 1 1/2.
I also suffered from depression after my 2nd bub, i went on AD's for 5 mths, I worked out that i had anxiety and started to take St John Wart tabslets and I feel great now, have only been on them for 2mths.
Make sure that you do not have anxiety instead as well.

I feel as if I can live in a much happier world, nothing gets to me like it used to.

My DF & I are going to start TTC#3 early next year.

I hope my story is of help to you, good luck.