TMI!!!! Okay for the past 2 days I've had milky cm I've never had this before. I'm not suppose to…

TMI!!!! Okay for the past 2 days I've had milky cm I've never had this before. I'm not suppose to start until the 29. Ive been taking ovulation tests ever since my period stopped which was on the 5 and no positive yet and I toke one today and still not positive. And I'm having major heart burn like I wanna cry about it.. I toke a pregnancy test probably 1 week and 1/2 ago. And it was negative what is going on..