Got mine out exactly 3 weeks ago. It was my second one so I've had one in for almost 6 years. Didn't have a period the whole time.
I got it out cos I'm now 48 with menopause symptoms & wanted to see where I am period wise. (I'm praying they're completely gone & I've gone through the menopause & am out the other side but I'm unlikely to be that lucky lol).