Mendtrual cycle - What is the reason behind having your period for 11 days?

What is the reason behind having your period for 11 days?

It’s really ireggular

Normally It’s four or five days.

I’d say speak to your doctor about this, they can probably help you with this.

Today makes 9 days for me but I have Been taking birth control. I don’t understand why it’s been 9 days..

The reason is something is wrong and whoever has that needs to get it checked out

Mine is the same way, I usually go for a week and a half to 2 weeks. (11-14 days)