Im in a similar situation at the moment, separated by different Countries from my partner, and I am also nearly 5 months pregnant. I wont see him again for another 5 months. Some days its easier than others but its hard when you have so much time to think.
I try to keep myself busy but always in your thoughts is your loved one.
I completely sympathise with how you are feeling. Please feel free to
PM me if you want to sound off at any time
Hopefully, time will go a little quicker for us all :-)