Weird discharge

I'm currently on Crinone progesterone supplement because my progesterone levels were a tad low and my doctor wanted to raise them. I've been taking it for a couple of days, and today, while at church, I felt a warm gush and about 1/8th of a cup of milky white liquid ran down my leg and into my boots! I rushed to the bathroom and cleaned up, and when I wiped, there were white chunks with the consistency of slightly dried tacky glue all over the toilet paper. While I'm not particularly worried because it was all bright white and I haven't been cramping or bleeding at all, has anyone had something similar? Is this just a side effect of the medicine? Thanks!