I'm 15 days late on my period, I have this CM for 15 days this does not stink, not hurt or anything .. I only have many cramps, headache, breast pain, bad mood and back pain, the last time I became a pregnancy test was four days ago ago and came out negative .. IDK is happening to my body, according to app im ovulating this week but have no symptoms of ovulation like Eggwhites CM

I have understood I can ovulate without having my period but IDK I have an appointment at the doctor on April 05 just want to know if any of you this happened and came out they were pregnant or had just a hormonal problem?