I am 40+2 with ds2 and for the last 2 days, every time I stay on my feet for more than 5 minutes I start to get contraction like pains in my back and under my bump which are constant and build up more and more the longer I stay upright with no break. Is this just BH's? Or contractions? If I keep on my feet will they eventually become contractions? Quite desperate for labour to begin!!