postpartum depression?

I am FTM and I gave a birth to my son 5days ago. I love him and when I look at him he's perfect. But I am not happy. Everyone said I would love him more than anything but so far I love my husband more than my baby. Everyone is so happy about my son's birth and they enjoy it but I am not enjoying it at all. I cry every night missing alone times with my husband. Am I having postpartum depression?