Contractions???

[snowyaj]

I'm lying in bed listening to some relaxing music and my stomach hardened up a couple of times. No pain, just really very tight and hard. I've bn practicing my hypnobirthing breathing as well. Seemed to stay very hard but still no pain. I got up out of bed and it was still rock hard, went to the toilet and even waddled up to hubby to see if he felt what I felt. Still felt hard then softened. I came bk to bed, lay down on my left and a few minutes later the same thing happened, again got up and went to the loo again. Admittedly I'd bn stimulating nipples as well. There was no pain either time and seemed to be very hard for at least a minute.
Are BH's supposed to last that long?