Help....

Ellie-mae • 18, mummy to be to a beautiful baby boy <3
I'm 33 weeks + 6 days and I was wondering if any other mummies to be were having the same pains. 
It's bad especially at night (don't know why, maybe the walking around during the day) but my belly has continuous menstrual like cramps, my back and ribs are killing me and my belly Is always hard. 
Is that normal at this stage?