Early labor?!

Ashlea • Wife to David, mommy to Jensen, and due with #2 Eveylnn Lilith August 7th 2016.
Did any mommies experience soft stools or nausea before labor? 
I've been having nausea since yesterday, really and this morning. I haven't had a soft stool or have a easy bowl movement since I found out I was pregnant and today I've had 3.  I had some soft contractions compared to what I've been having on a off for 2 months. 
My water broke with my son so I literally have no idea.