The week before I went into labour I went all te time lol! Weird!
Yea when I was about ready to have my baby I started to poop a lot. Maybe baby is coming soon!
My doctor told me that might happen. It is a sign of your body getting ready for labor. (Not saying you're going into labor, just getting ready.) It is a normal thing, and may come and go, or even turn into diarrhea (not comforting, I know). No worries though :)
It could be a lot of things pregnancy does weird things to your body or your body could be readying itself for labor! Just drink plenty of water to stay hydrated :)