If what your doing is not working, then look for something that does. I would head to my doctor and tell him what you told us. There are so many drugs out there to help you. (what a blessing)
There are also other stuff to help manage your illness. Therapy, exercise, and being on this board are just a few. I would not worry about being judged. First off when your on meds that are working and you feel right (or close to it) then no one would expect that you are sick. They notice more now because of your depression. Second your man seems supportive. Being with him and new to motherhood is all new. That in itself can be stressful. Do yourself a favor and get the help you deserve.
Keep us posted