Slight cervix pain at 38+4?

I have an appointment tomorrow so hopefully I'll get some sort of answer but to try and get through the night I'll ask the Glow community:

So I'm 38+4 and I keep getting this little pang on my cervix. It lasts anywhere from 5 seconds to 30 seconds and they don't seem to happen at a certain time or in a certain pattern. It doesn't hurt super bad, of anyone is a menstrual cup user it kind of feels like when the cup pops open too quick.

Is it just where baby is sitting? Is it something to worry about?