gush of fluid?

I'm 31 weeks and my husband and I had some late night intercourse with me on top around 1am, that lasted about a half hour. Afterwards when I had wiped off and sat on the edge of the bed on a towel for a few minutes, I felt a warm pool of fluid when I stood up to check it was a clear, tacky fluid. I couldn't really smell anything other than laundry detergent so I guess it didn't really have a scent. I'm just wondering if I should be concerned or if this just sounds like liquidy discharge?