Did my waters just break?

For the past 4 hours I've been leaking small amounts of clear colorless liquid.

Initially I thought it was urine but when I smell it, it's odourless. It has soaked through my underwear.

My mother says it's not because she thinks amniotic fluid is supposed to gush out, but I've read that it can also trickle out.

Can some of you mommies tell me how you knew your waters broke?