loneliness during pregnancy

I live 20 hours away from my family, closest friends and hometown (by plane). I have some friends where I live now and am for the most part very happy. However, none of my friends here live close enough to stop by. They're far enough away that we generally have to make plans, or I see them when I'm in the city for work. Also, none of them know that I'm pregnant yet. I'm only 8 weeks and haven't seen the doctor yet, so I'm just not comfortable telling. Other than my husband, the only people who know are my mom and best friend, who are both so far away, and because of time zones, go to sleep around noon my time, so I can't even really talk to them all day. 

Since I've become pregnant, I've had decently bad morning sickness and exhaustion that have forced me to cancel plans on multiple occasions. Even today, I am feeling pretty good, but a friend asked me to join her for a yoga class (which is a pretty typical activity my friends and I do together), and it's one of my favorite teachers but it's heated, so I know I can't go. And I can't even tell her why, because she doesn't know I'm pregnant. 

I also don't work very much. I've been teaching 15 yoga classes a week, which made me happy, but now that I've had to give up my hot classes, I'm down to 6, so that cuts a lot more socializing out of my life. In contrast, my husband works a lot. He's usually gone before 7am and home between 6-8pm, sometimes needing to take calls when he's at home too. He is wonderful and supportive, but I've probably even been leaning on him too much lately, I feel like he's the only person I ever see. 

I also know that my hormones are going wacko and that I generally am down in the dumps when I'm not feeling good anyways, but I've been lonely to the point of tears so many times since becoming pregnant. 

I wish a lot that I was living back home, where I have a large support system. But under normal circumstances I'm really happy where I live now, so I haven't even brought that up to anybody. 

I'm hoping that when I can share the news with everybody and start feeling better, things will get easier. But in the mean time, it's just lonely. Thanks for reading this, if you got this far. Again, I'm not sure what I even want to get out of posting this, I just needed to get it off my chest.