Please read..

Amber • Married to the love of my life,and ttc!!
My af isn't due for another 7days... I was standing doing my makeup earlier and I got the feeling I started... Well I didn't,,it was just like a mucus plug it was brown. I'm not pregnant we are ttc tho,,what could this have been? I took 2 pregnancy test 2weeka ago two came back positive but my blood work came back negative??