Feel odd and empty!

So my husband and I used to be in a long distance relationship. We've been living together now for about 3 years, the only time we have been apart is when I took and emergency trip back home (different country) for 10 days in November. Well I havenhadnthisbtrip planned for weeks, going back home to visit on Saturday, I will be going alone as he cant come due to work and plane costs, well any way a few weeks ago we find out he has his first ever business trip which He has left for today and gets back Sunday, so I will be gone bunthentime he gets back. Iv actually been looking forward tonthentime art, it's not easy going from a ldr to living together and especially recently with his job and me being pregnant I definitly think some space is needed and I didn't think I would feel like this! I think it also has to do with the fact I'm a complete nervous wreck when it comes to flying and he won't even be able to drop me at the airport 😥 just feeling down and I want to tell him how I feel but I'm holding back becuase 1) in always the one getting soppy and he doesn't really respond in the way I want him too, and 2) I want him to think I'm not missing him lol I know it sounds weird but that's just the way it is!