It was all quite obvious with my first one but today (with my 2nd), I'm having regular strong possibly braxton's BUT they feel more 'wave-like and intense' and are accompanied with lower bump period pain (mild) and loads of pressure in my back passage / coccyx area.
They seem to be every 15 mins lasting about 30 secs but are mild enough to carry on doing everything but intense enough to make me aware of them if it happens while I'm answering the door to someone for example.
Could this be it or does it sounds like boring old BHs??