My sister recently had her first bub. On Saturday her OB said bub was still happily floating around in her tummy. On Sunday she started getting dull period type pain. On Monday she went to accupuncture, where her waters broke on the table and bub was born 6 hours later!
With my DD2, I had accupuncture at 39 weeks, then again at 39+5weeks, bub was born the next day.
Both my sister and I took RLT religiously in the third trimester.