Changes in cycles

Shakira

Just wondering if anyone has experienced changes in amount of days they have their periods? My period is normally 7 days and i get cramps and abdominal pains a few days before the first day but this period i had nothing and its lasted 8 days!

I am so confused at what this means. I thought it was implantation bleeding to start with but its been 8 days 😑

Can anyone help me out please!!!