Listeria or body preparing for labor

I am 36 weeks and 6 days and ever since Friday I am pooping like crazy. It’s not like diarrhea its more of a softer stool that usual. I’m not throwing up I don’t have a headache it’s just light stomach cramps before I have to run off to the bathroom. This is my first so I’m not sure what to really expect. I have been having more discharge than usual but I’m guessing this is normal. Please share your experience with this. Did anyone else notice an increase in bowel movements and softer stools before they went into labor? I spoke with L&D and they said it’s normal but I will be calling my OB tomorrow to see what she says.