Pleas advise on my cycle :(

Hi all. So basically I have recently come off contraception (mirena) and so far my periods and cycle have been as follows;

Start              End

13TH Sept -  17TH Sept (CYCLE LENGTH 22 DAYS)

6TH Oct -      10TH Oct (CYCLE LENGTH 26 DAYS)

1ST Nov -      5th Nov (CYCLE LENGTH 22 DAYS)

So, according to an app I have, I should have started my period yesterday. Is this correct? I am having trouble understanding it all due to not long being off contraception and actually having periods again.

Thank you!

Layla x