Angry pregnant woman...

I can already tell I'm going to be one of those angry pregnant women. I'm almost 7 weeks and the past two weeks I have no patience. I usually have a lot. If the dogs are barking I get mad, if they try to jump on me I get mad, if I get bored or hungry I get mad. If I start getting impatient waiting for my man to bring me something or to come home, I get mad. Everything just makes me so angry. And I'm not an angry person. I really just want to explode and break something. Is anyone else going through this? How do you calm down and maintain yourself? I'm doing pretty good but it's getting really hard.