Signs of early labor?

Hello ladies! I've read that having diarrhea towards the end of your pregnancy can be a sign of early labor (like a couple days before going into actual labor) as it's your body's way of "getting ready" for the delivery. I was wondering if anyone has had this and gone into labor shortly after? I'm currently 36 weeks and 4 days and have been having diarrhea since last night and I'm just wondering if it's almost time for our baby boy to make his arrival or if it's just a virus of some sort. I do have an appointment tomorrow so I will ask my doctor about it then. Thanks in advance for your help!