Symptoms of pregnancy?

Jan • Mommy of a 2 year old
Can constant anger or annoyance be one of the symptoms of pregnancy? I've been very annoyed of everyone around me especially my husband and I'm constantly angry. I'm usually a happy energetic person. But lately I've been so annoyed and angry especially since the time my period was supposed to come last Friday. I'm a few days late for my period and I've been having lower back pain for a week now.