Dunno if in in early labour this is my 3rd so you would think that I'd know but was started with my first n went horribly wrong n waters broke 4 week early with my son and didn't know I was in labour just felt like twinges? I'm 35 week today but measuring at 40cm had back pain n period pain for few hours only it feels like trapped wind on and off? Only quite painful like i need a poo but i know i dont cos already been? I'm so unsure?! Guess time will tell? :)