Deployment Depression

I'm now 23 weeks and a few days. My husband just deployed 2 days ago. I've been crying nonstop. I don't know how to deal with this. This is my first child and first deployment experience. Thought I would get through it easily. He will be gone for 7 months!! Missing the birth of our son Atticus!! On top of that, I'm in a town where I don't know one person at all!! Has anyone been through this? What should I do?