Terrible Cramps and progesterone

Elizabeth • Alooooha! Finally knocked up (naturally) after 20 months TTC!! We're so ready for this. "Pili kau, pili ho'oilo" (MKP)
I've been having sharp cramping episodes once or twice a day for the last 2 weeks (6w3d today). Comparable to the pain I felt when I got a Sonohysterogram and they filled my uterus with the balloon and saline. Or like the worst cramp of your period, but it doesn't release and lasts for a straight 10 minutes. A 7 to a 9 on the pain scale. It's really distressing! Doc put me on progesterone suppositories (taken for 5 days) but it's not getting better. Any insights out there? I'm worried for baby. Thoughts appreciated! Thank you :)