contraction vs cramps

Ruthie
Woke up yesterday ( my due date) with mild cramps. The cramps turned in to contractions for about 6 hours. I was so excited and thought 'wow this is it... she will be here soon' my family booked flights to be here for the birth and all of a sudden the contractions just stopped. Baby is fine and moving but no more contractions?!? What the heck? Anyone have this problem too? Was that BH or False labor or what?!?