Anyone feeling alone?

I’m the first of my friends to have a baby so I’m not sure they understand what I’m going through. I get the sense they don’t really want to discuss my experience. My best friend’s reaction wasn’t what I thought it would be. She wasn’t as excited as I thought she would be. I haven’t told my parents (plan to surprise them on Christmas) and I am married but am just feeling really alone right now. My Husband and I are high school sweethearts and we’ve been together 12 years. The baby is going to come into a very loving and stable home. So why am I feeling so down? Not sure if this is a case of the winter blues or what.