I just got woken up by the sharpest deepest ache on my side on the last side.. I'm thought I got…

I just got woken up by the sharpest deepest ache on my side on the last side.. I'm thought I got kicked from Hayden last night because I had the problem before I took a nap and it went away well this time it hasn't and this has lasted since last night. I experienced this two times in one day. it hurts to even move it was becoming uncomfortable to lay down last night. I checked for blood and i don't see anything not even a mucus plug. my son hasn't moved much.. I don't like that. I have a ultrasound today so hopefully everything is okay.