Super angry over stupid stuff?

Chelsea

By all accounts, everything is going well and smoothly, but this week (I'm 5wks, 6days) and I cannot control my anger! I'm getting so irritated over things as silly as a new song not meeting my expectations and it being too cold outside lol. I need to chill. Does this last all pregnancy? My poor fiance lol even his usual antics are annoying me. What to do?