How long after the "period from hell is coming" feeling did you go into labor?

L

I was having braxton hicks every 10 minutes for 24 hours. They eventually went to every 4 minutes, which then finally turned to what felt like real contractions (were painful, radiated around, back pain) every 10 minutes for an hour or so. Kept me up till 3 AM and then just quit. (Been losing my plug over the last week) However, this morning I was sooo crampy and was having consistent pain in the small of my back. In your experience, could I have this baby soon, or could this go on for another week? (Hoping for a VBAC and would love to go into labor naturally!)