Mommy, ang watery discharge sa pregnancy ay normal, pero because you're at 31 weeks, it's really best to check with your OB agad, just to make sure everything's okay and it's not something else. Better safe than sorry talaga, no? A few of my mum friends experienced it too throughout their pregnancy, pero every body is different, so your doctor will know best what's happening sa iyo. Sending you love, and please don't worry too much, most of the time it's nothing, but let your doctor reassure you. Let me know how it goes!