Depressed

Has anyone elts gotten a rlly bad deppreshion during theyr pregnancy? I'm in a bad deppreshion cycle ....I had been prone to it previously but haven't had problems in neerly a year and a half...and suddenly it's back full force.....I don't wan a get out bed....I don't have energy for anything. I feel hopeless and worthess....like I just suck at everything.....and it's all my fault any time something happens... ...even my wife has noticed. I won't get into the deeps detals.but is anyone elts like this? ....is there something wrong that I haven't at all enjoyed my pregnancy. ....