Hun, I'm almost certain it's good ol' BH. Mine have been pretty regular, sometimes 3 minutes apart for half an hour, then 10 minutes apart for an hour, and then nothing until the next day. I tend to get mine in the afternoons. I've read on the net that BH are actually very good for bub and the actual labour. It helps bub to stay toned and the uterus as well, in tip top shape. It also said that unless the BH get more intense, ie they get worse over the course of the day and they don't go away, it's probably the real contractions. But I think you're all good, sounds like what is happening to me.