I had the same problem, just i was losing a bit of 'fluid' every so often, I didn't use a pad though. I went to the doctor and they checked me and it wasn't my fluids, he told me that it's perfectly normal to have 'watery' discharge that doesn't even resemble discharge and that it could be a 'faulty bladder'. The ways to tell if it is amniotic fluid, *note: this is copied and pasted*
Amniotic fluid (your "water") should be clear, but it also can be yellow, pink-tinged, brown or green. And, unlike urine, leakage doesn't happen only sporadically; if your membranes are ruptured, you usually continue to leak fluid. If you're unsure whether it's amniotic fluid or urine, put on a pad and lie down for about 30 minutes. If you feel a small gush when you stand, it could be amniotic fluid.
So I would try that if I were you, and try not to worry yourself too much because it is a rare thing to happen.
