Unreasonably Angry

I’m a little under 6 weeks and have been seeing red / very irritable - especially towards my husband. I feel like a jerk for snapping and losing my temper. This is not like me at all :( Also I haven’t been getting nausea or morning sickness but every time I get upset it makes me all of a sudden nauseous. Does this happen to anyone else? Any advice? I want to just crawl in a hole and avoid everyone for 8 months in fear that I’m going to cross a line with someone - it sucks feeling out of control with my emotions