Feelings of worthlessness while pregnant?

Long story short.... I feel so worthless right now. I feel like I can't do anything right, I mess up everything, I suck at life, my husband hates me (in my head), and I have horrible thoughts! I can't escape these thoughts no matter what I do. I feel as if I have no support system and I clearly do! It's driving me up the wall. I'm 12 weeks pregnant and I am already having these pains, thoughts, anxieties. I workout daily already (I see that exercise helps this). All I want to do is do nothing and stay at home.... sometimes sleep because it's a way out. Please help! What advice do you have? Thanks in advance!