Continuous Cerelle (desogestrel) POP/mini-pill --- no period

Hi, I'm on Glow to keep track of my periods and NOT trying to conceive. I was put on the Cerelle pill continuously with no breaks earlier this year after retrying Rigevidon, before that a Mirena coil, before the Depro Provera injection, before that Rigevidon under a different name.

So, my periods had started getting really regular on Cerelle, then got only a couple of weeks apart BUT now I've not had a period since 9th October. I've done tests between (negative). Has anyone else had this happen on Cerelle taken continuously?