It sounds to me like discharge too.. I had that happen to me while I was pregnant, and since I at first thought it was my plug, I had my dr do an internal.. My plug was all still there, and she told me it was most likely dishcarge. Then I lost peices of my plug and it's very obvious what that is (once you see it) lol. Like MJCOTA said, it's not always bloody, but it's pretty "booger" like, I know, gross... It won't break apart like that in the water. I know, it's kinda sick too the amount of discharge pregnant woman get huh?