What are the signs of postpartum depression?

How do you know if you got postpartum depression I had my baby 2 weeks ago and I’m not getting any support for my husband only from my parents. I need to know how I am getting it so I can kick it out the door I’ve suffered from depression before like 5 years ago I don’t want it back I’m not happy I just want to cry the only thing that makes me feel happy are my two daughters