Hello everyone Girls, my belly is cramping periodically, in different …

Hello everyone Girls, my belly is cramping periodically, in different places, sometimes I don't feel it, only when I put my hands on it, and sometimes it feels like I'm going down the stairs, but the main thing is that it lasts for 15-20 seconds and then the belly is soft What could this be? I noticed this a long time ago, but neither an ultrasound nor a CT scan showed any tonus It used to disappear, and now there's a strong regime, and again On Wednesday, I have an appointment I also have a shortened cervix, I take Utrogestan and follow a bed rest regimen I drink magnesium, vitamin D, I insert