Is anyone else extremely emotional?

Myranda • 25 SAHM. 3year old daughter and angel baby and baby boy on the way.
I typically have the emotions of a rock, these crazy mood swings and crying fits and getting mad at my SO for the water in the shower not being warm enough for me, are making me nuts. I hate not feeling incontrol of my thoughts and how I react to them. Is anyone else feeling like this? Will it subside at all? I'm only 7 weeks.