Hi, I'd come across a video yesterday which stated you could tell when you where near Labour as a purple line appears near your anus to the top of the butt cleft, curious I looked today and have a big purple line which reaches the top of cleft. Should I be worried I'm about to go into labour? According to charts it's says I should be 10cm dilated but I'm definitely not dilated and I'm only around 31 weeks. I was wondering if anyone eles had one and how long it took for labour after noticing. 🙂