how will I know when?

Paige

ok so I have had real contractions for a few weeks now off and on, some days even to the point of every 3 min for hours straight and then they just stop. I was wondering how I will know when it's the real thing vs what I have now, especially if I am part of that percent that their water doesn't break. I am so nervous I won't make it to hospital. words of wisdom please!!!