Feeling a little sad

My daughter is 2 weeks old and my husband just went back to work today. I know I'm so incredibly lucky that he was able to stay home with us for two weeks, but I'm having a hard time dealing with him being gone all day. Taking care of our LO is tough; she needs to be held almost constantly and always cries when she's not sleeping. I have to sleep in the living room with her to let my husband get some sleep; it's the only place she sleeps. My husband came home from work and had to go to bed almost immediately since he's working a night shift tonight. I just really miss sleeping next to my husband; it's been over a week since I've been able to sleep in our bed. And even though it's only been one day, I really am sad I didn't get to spend some time with him this afternoon. Being a mommy is so rewarding, but it's hard. I guess I just needed a place to get this off my chest :/