baby blues

I'm 1 week postpartum today and ever since I have come home from the hospital I have been having so much anxiety and I have been crying on and off I'm so worried all the time about him. My fiancé is a huge help with him even working 8 hours a day he still wakes up at night and helps me which is when my anxiety seems to be the worst. My baby at night wants to nurse constantly and if he's not he's crying...when that happens I start getting a anxiety attack because I'm worried there's something wrong or I'm doing something wrong