Sarah,
My hind waters broke as I went to bed on Tuesday night (Maddy was already 5 days over), it was like a constant trickle for a few minutes, but stopped we called Hospital & they said sounds like Hind waters, so try get some sleep but if a gush of water that does not stop happens then come in. Well I tried hard to sleep & had mild contractions alnight, but nothing major, I remember not sleeping & on Wednesday morning contractions were harder but about 20 mins apart, on Wed night I was exhausted & wanted things checked out, so they took swabs etc & all was fine & sent me home with panadeine forte, I did not take them but ate dinner & went to bed, but again couldn't sleep for fear & excitement!
At about 10pm, my forewaters broke & this was a 2 towel job!
I sat over the bath letting it run away, Mum came in & found me there, she called hospital but as I was not having contractions the said try to rest & we will see you in morning, but I couldn't sleep & so at 5am I nagged Mum to take me to Hospital. I was wearing a pad & the fluid was now greenish due to maddison being stressed, so I was induced & it happened really quickly from there!
I was initially given to bags of electrolytes as I had no energy, but managed to push her out by lunch time!

So I'd say it's getting close!

Best Wishes!!!!