A.K.
Whenever I was going through a period of depression or post-partum with my boys, my parents were always there to help me. If I was having a rough day they would drop everything and make the 30 minute drive to my house so I could go to the Doctors or leave the house and unwind for a while.
Go to your Doctor when you need to and stay on your medication. I've been told it can take a bit for it to work for some people.
Other things that helped were talking to a close friend, writing in a private blog, even listening to a favorite cd. Sit down and read a book to your kids or watch a movie with them, the rest of the things you need to do will wait for you. Exercise always helped the most. Walking around the block or on the treadmill was great. Exercise videos and yoga are always available. I even got a gym membership when we could afford it and I wasn't working full-time. I felt my best then. When you exercise it increases your seratonin levels which is what a large number of the anti-depresents stabalize. So if you are doing both it is doubly good.
Also... make sure you open your curtains/blinds. The more sunlight you get the better you will feel.