Anyone else have a short fuse?

I can barely handle these emotions. I have very busy days. I have a 2 year old, nanny another child and work two other at home jobs. The day goes fine until something happens unexpectedly. For example the dog that I am so over even having, just peed on a very expensive rug. I love the dog, don't get me wrong, but she has severe anxiety and I just can't handle it on top of everything else. My husband has a pretty cush job at the moment and decided to go gets beers with a friend after work yesterday. He didn't tell me so I was wondering why he was working so late. The only reason I even knew was because I could smell beer on him with my pregnant nose. Everything is aggravating me. I just need some extra help and more sleep!! My huaband gets the brunt of my emotions because I try to keep it together for my son. So our relationship is not awesome right now. I don't know what to do to feel better.