Feeling down about pregnancy

I'm half way through my pregnancy and just found out my husband will be deploying for 9 months this coming Feb. I'm due in April. My husband just got back from a 9 month deployment about a year ago, so I didn't expect them to send him off again so soon. They didn't tell us this ahead of time, so we had no idea. We both think it's best for me to go back to my hometown to be with family so I can have help. I'm trying to stay positive, but I had this different image in my head about how things would be when the baby gets here. I wanted to see how my husband would react and experience our newborn baby together. I'll be alone and watch our baby reach milestones by myself and only have pictures to send him. It breaks my heart that he will have to miss everything. Now that I know he will be leaving, I feel down about my pregnancy. I'm not as excited. All of our plans always get put on hold. I'm not looking for advice. I know.. "Stay busy" as I will. I have plans for what I will do while he is gone. I still plan on making this special for him. We've been through deployments and long distance before, so I know we can do it. I just wanted to vent since I have no one to tell this to.