What is cervical mucus tracking, and how do I do it?

Question

I would like to know what cervical mucus is and how to track it as a sign of ovulation. What changes should I look out for?

Answer

On june 10-12 i have my regular period, in the last week of june i have the feeling of always sleeping, always go to the cr for the pee..first  week of june i got morning sickness, july 9-10 i have a browninsh but it is only 2days , i don't know if its a natural menstration but my normal menstration is 3days sometimes it extend to 4 days but the 4th day is the brownish .. what the meaning of that?

Answer

@GlowGPT please help me with this topic!