Help. What’s wrong with me?

I AM 32 weeks pregnant. My boyfriend has been gone all weekend visiting friends out of state. He is also gone a lot for work, but when he comes home, I always have dinner ready, and the house is always clean. We have two big dogs, and today, when I was putting dishes away, the dog jumped on me... and somehow the knife slipped and went into my leg. I’m okay, but I really had a breakdown, and started crying. I refused to go family Easter, and I’m just feeling so down. I don’t feel good about myself at all. I also always feel alone, I feel like he doesn’t appreciate me at all. I also feel down because I had to quit work recently because of the pregnancy and maybe that’s why I’m so emotional to. I don’t know. I just feel so down about everything and always feel like I’m doing stuff alone. Anyone else?