Body preparing for labor

I am 34+5 today with my third baby. My second child is 7 so it's been a while since I had a baby. I'm curious if anyone else is getting pre labor symptoms this early. I've been feeling pressure, cramping, back pain, and painful Braxton Hicks all day. I've been nauseous for a few days now and tonight I had loose bowls (sorry for the TMI). I've also had loosened joints for a few days now. I don't remember any of this happening this early my previous pregnancies and I'm starting to worry this little one is going to arrive sooner than planned.