I don’t want to do this anymore

My son will be 3 weeks old on Thursday and sometimes I don’t want to do this anymore. I feel awful about it. He’s my rainbow, but I find myself looking at him and asking myself why I even wanted to have a kid. My fiancé is on paternity leave and is home with us, but I still feel overwhelmed and alone. I’ve thought about leaving my fiancé and our son, but I don’t have anywhere to go.

I saw my psychiatrist today and he put me back on the higher dosage of Prozac (my ob decreased it while I was pregnant), so hopefully I’ll feel better soon...