Early signs of labor?

Ashley🌹🌹🌺 • I'm a FTM with experience of babies from raising my sister. I'm an herbal nut who's madly in love with my soulmate.
So my husband believes that I'm going to go into labor soon. I'm 34w tomorrow, measuring 35w with incredible health on both myself and my son. My doc at this point has even stated that if I was to go into labor he wouldn't stop it bc of how great our stats have been recently. That having been said, now onto my husband's theory. 
Last week I fell 3 times. Had a few contractions that went on and off for a few hours, nothing to really rush to the hospital over. No bleeding, no mucus plug, etc. My son was bouncing all over the place. (Pretty sure my butthole had a bullseye on it) 
Now I'm carrying pretty low and have been for weeks. I have my bag for the hospital all packed (everyone is shocked, but I don't want to be rushing around with fluid gushing out of me throwing things in a bag between contractions. Heard that horror story!) -- and I've been cleaning my house for 3 weeks. 
In the last week I have had ZERO energy. None. I'm doing good to make food for myself and hubby and stay awake doing it. 
I've also had contractions off and on throughout the last week but again nothing to rush to the hospital over. 
Today I woke up and my whole lower back/butt has HURT. I mean it feels like someone took a 2x4 across it. There is no bruise but my back feels like it's covered in black and green bruises. Idk how else to describe it. And no, it's really not gone away. 
I also ache off and on throughout my body. Similar to the flu, but I'm not sick. This started yesterday.
My husband just knows that this all means labor soon. I've not lost my mucus plug, no water breaking, just the occasional contraction. What do y'all think? We've had an unshakable feeling for months that he would come early, but idk if this all adds up to some wives tale about early labor or not. 
Sorry for the long post. 😕