Is the clear discharge really liquidity? Could be your bag leaking, that's how mine was it didn't bust all at once but leaked a little out a little at a time
If the leaking has been consistent I'd definitely contact your doctor. It could be amniotic fluid. And beginning labor contractions do feel like period cramps.
I know this sounds nasty, but smell the liquid. If there isn't a smell, then I would go to L&D cause it's probably the bag leaking. I went 24 hours before I went in and had to be put on antibiotics during labor. It's better to be safe