lost another part of my mucous plug. and here lately I have just cramping. and my belly has been…

lost another part of my mucous plug. and here lately I have just cramping. and my belly has been getting tight and relaxing. I can't afford to miss work. but it is doing nothing but getting worse. I'm hoping it's just a uti but it doesnt burn when i go to use the bathroom. cause she needs to bake longer. she has been really low a lot here lately.