I absolutely agree it should be checked out. As NatFox said, you do need to ensure this is not a UTI.
As for labor, if you are 3 cm dilated, it could be any day or any minute! Congrats to you and I wish you an easy and healthy delivery.
hard call to make could be begainings of labor or could be a uti, best to call your dr and get looked at, and maybe take a urin test.
Any pain when you pee needs to be checked out. Could be infection and needs to be treated before the baby comes. Call your doctor.
I would check with midwife. Could be a sign of labor.