Really strong period cramps that wrap around to my back

Katie • 🐶 mom | Navy wife | 🌈 baby boy born Oct 5, 2018💙

I’m 31 weeks. Sometimes they come at 5 minute intervals and sometimes I catch a break for 30 minutes to an hour but it’s been happening for 8 hours now. I’ve been up all night. They’re so painful and make me feel like I have to poop. I threw up last night and broke out in a sweat during one of the cramps. Is this normal?