hi aerokitkat,
how exciting! You're about to get to see you're lovely little baby!
Basically you're looking for something unfamiliar falling out, or unusual pain (as most things are a bit painful at that stage!)
i got out of bed and red water fell on the floor. 'Weird', I thought but carried on as normal, went out for lunch. Then a couple of hours later, more, yellow water fell out. 'Hmm, that's odd', I thought.
Then I called the hospital midwives who said it was a show / my waters had broken and I needed to come in because there was a higher risk of infection once your water broke.
There follwed 4 days of going backwards and forward whilst they tried to persuade me to be induced, and I refused, then they monitored my baby to make sure there were no signs of infection.
Then one day i got regular period pains and that was it! Did I 'know?' - No! not really I just thought it was odd, plus I wanted to go out for lunch! However looking back I think there wa a little bit of denial in there - I was terrified of the pain. And it didn't even hurt that badly, I used TENS and pethidine and did it all by myself!
Good luck with it all, you'll be fine - it's amazing what you can do !!