Help! Mood swings are driving me crazy

Sarah • Pregnant with baby #2!
I'm so emotional, I feel bad for my honey because I'm crying for his attention even though he's giving me some and acting like its the end of the world because we haven't had sex in 3-4 days! Ugh one minute I can go from wanting to kill someone to balling my eyes out! Does anyone have any tips on easing the mood swings?