I'm 32 weeks pregnant and this mornin woke up with really painful lower back pains ,?

I took my boys to school and walking down the hill in a 15min journey i had about 2 bad braxton hick contractions which made my breath go and all my tummy went hard, i went to the hospital to be told it is just bad braxton hicks, even though through-out the day i had more pains in my lower back and in my front, low down around my pubic bone area, i also started feeling sick etc, the midwife checked me over and said i'm not dilating so not in labour , just called it bad braxton hicks contractions! my pain in my lower back is still here, does anyone think this sounds normal or am i in early labour? and is this my bodys way of starting out.... only serious answers only please, ive never felt anything like it.. with both my sons, my waters broke first, 1 @ 36wks and 1@ 39wks+6days thanx ..... lemme know what u think, i have a really MAD gut feeling im gonna have my baby this weekend, il be 33 weeks on saturday...