Diarrhea before labor??

Sa

First time mom here.. this is kind of TMI (I’m sorry!) i got up this morning and went to the bathroom and i was constipated (beyond normal for me... I’m seriously ALWAYS constipated) went to my 36 week appointment and was checked.. no dilation. Came home lay down for a nap and woke up and had to run to the bathroom and had A LOT diarrhea. I can’t even remember the last time i had a soft BM. Surly this couldn’t be the start of labor right?! I’ve read that t could happen but i just got checked and i wasn’t dilated. 36+2. Any thoughts? Any similar situations?