Great article from the State of NJ Department of Health and Senior Services. It asks and answers many questions concerning Postpartum Depression. Please take a look at it if you have questions that you are afraid to ask. Again, please consult your doctor if you feel you may be suffering from more than just ordinary "baby blues."
http://www.state.nj.us/health/fhs/postpartumdepression/healthcare-faq.shtml#q18