I know no one can be sure but I'm getting cramps low down in abdomen every 3-10 minutes lasting around 20-30 seconds. Not much back pain. Happening for about 3-4 hours and don't seem to to getting much worse... They are painful enough that I have to stop what I'm doing and focus on my breathing.
Also need the loo every 15 minutes.
The thing is in my last pregnancy they were quite different and I had no doubt they were contractions - started mildly, got stronger and more frequent, in my back as much as my front.
I guess these could just be Braxton hicks but they're really quite achy!