Postpartum depression or baby blues?

I’m 5 weeks postpartum and the last few days have been rough. I’ve broken down crying on a few occasions, I worry that I’m not enough for my baby. When he cry’s I feel like I’m supposed to be the one person who can console him and I can’t. I feel like maybe he’d be better off without me. I don’t feel a strong bond with him, sometimes I feel like I’m caring for someone else’s baby. I feel so guilty for feeling this way I don’t want to tell my family or friends. I’ve never had depression before so I don’t know if it’s ppd or just baby blues but I think I need help.