I don't know where you can get one as I have never had to have one. I only worked part time and didn't need to use one. Someone will chime in here and give you an answer soon.
About your last post, I really think you sound like you have post partum depression. It happens to lots of women. It can be mild or severe. It can happen to women who tried to have a child and women who didn't want their child. To women who are young mothers and older mothers. It can happen to any mother.