Feeling lonely...

Hey ladies,
​So im 16 weeks pregnant and physically everything is going normal, its my first pregnancy and my husband and I are very excited about the prospects of becoming parents. However, ive been feeling quite lonely and depressed the past couple of weeks. I dont want this to affect my baby but i feel as though i have no control over it.
​The main reason for these feelings is that my husband is not with me during this time. My husband works in the middle east and although i visited him, i could not stay with him throughout the pregnancy and have our child there. I had to leave when i was almost 4 months pregnant..and of course i cannot see him again until its time to have the baby. This has been very difficult for me and i miss him terribly...if we had any other choice we wudve been together..bt we were helpless.. :'(
​I miss him a lot and im having a lot of difficulties dealing with this adjustment, hence the loneliness and depressive feelings. I am with my family at this time so i do have a strong support system..bt its not the same thing. 
​I reallllly miss my husband! I dont want my sad feelings affecting our unborn child..any advice as to what i should do?