ok so I had my son 3 years ago. since then my periods have changed. one month it's heavy then the next it's light. so I've just got used to it and my doc said it's alternating ovaries.

this month I'm just like freaking out because my period came 4 day early and when it started the blood was like really thick. now I'm on the 3rd day and it's still really thick blood. I use the diva cup and noticed a lot of thick blood and then on the top really light blood

normal or no?