I need advice :(

5 days post baby and I have lost 10 lbs. that's it.. and my stomach keeps saging more and more.. I had a c section and stomach is going down and I get I'll have some lose skin but it's like none of my skin is tightening or slimming. It just sags and sags . It makes my self confidence awful bc my stomach wasn't like this :( and only gained 30 lbs total. 
What can I do now to help? Or tighten?