Should I call?

FTM so I’m not sure what to expect. I’m already 4 cm dilated and everyone I’ve talked to has said they had obvious contractions to get to that point

Anyway

Did a lot of walking the past couple of days and while I don’t have any time-able contractions that I notice, the crampy feeling I’ve had for a couple of weeks has gotten worse and more painful. There’s also a lot of pressure in my pelvis. My stomach has been tightening and then loosening up. I’m just so uncomfortable but I don’t know if I need to call or just wait for something more obvious