Hormones or something else

I am EXHAUSTED. I don’t want to do anything or go anywhere or see anyone. I also can’t stand my boyfriend and I don’t know why. Everything he does, including walking, breathing, and calling my name, annoys the hell outta me. He is a great guy, but for the past few weeks, I don’t want him around. I’m a little over 6 weeks pregnant with baby #3. I had absolutely NO issues while pregnant with my 1st 2 girls and I didn’t show with them until I was about 6 months. Currently, you can tell I am pregnant. Help, reassurance, advice, anything!!!!