Sadness

I am currently 9 weeks pregnant but no matter what I do nothing seems to be good enough around my family or my husband. I sometimes wish that I was never around and that people would forget about me. I feel like I'm not good enough for anyone or anything. I feel as if I am worthless and screwing everything up. Has anyone experienced this type of sadness? by the way this is my third pregnancy. I wish I could enjoy it but I just can't seem to find excitement in anything anymore. Please no hateful comments.