Does anyone feel more irritable?

My sister commented a few weeks ago that I have been more irritable since becoming pregnant. I really hadn't noticed it before but the past few weeks I've realized I am super annoyed of people for the littlest things. I am usually a very happy person who doesn't get annoyed easily and typically pretty reserved, but lately I'm much quicker to speak my mind and have a shorter fuse. Does anyone else feel like this since becoming pregnant? I'm working on it, but was just curious if anyone else feels the same way.