M.S.
I had a leak that eventually ruptured. At first, they thought the low fluid was just timing, so they had me return a few days later after drinking more than usual. Once they determined it was a leak, they told me drink up to 2 gallons (I was actually a water-holic already drinking a gallon), and bed rest. But then I ruptured and was admitted to the hospital until he arrived (4wks later).
When I ruptured, it wasn't watery fluid pouring out, but more like massive amounts of fertile cervical fluid, like eggwhite consistency, oozing out (sorry if (TMI!). It happened while on the toilet, almost filling the bowl and soaking several towels. I'm not sure if that's what you need to look for, but if that happens, call the OB. I delayed thinking it wasn't watery enough and I didn't want someone else to delay.
My son is 25mos, btw :)
Good luck!!!