Depression during pregnancy

I’m currently 10 weeks and 1 day. I feel as though an overwhelming feeling of depression has come over me and I’m not sure why. I tried so hard for this baby and now I’m having the most negative thoughts like I won’t be a good enough mom and that I don’t deserve this baby. All I want to do is sleep. And when I’m not sleeping, I just want to cry....I don’t know what to do.