Depression/baby blues?

Ever since my baby girl was born last month, I've been so hormonal and crying all the time about her growing up and changing so much already. I never expected time to go so fast. 
My husband works out of town 3 weeks out of the month and is home for 1 week so he's not around much which really adds onto the sadness I have that he's not able to watch his daughter grow up and see her every day like I get to. 
Some nights I just cry because I'm sad about how fast she's growing or how much I miss my husband being here...
Is this normal or could I be going through depression or baby blues? FTM