3 month Mirena 10 days late?

Edmaris

I have been on mirena since May 24 so basically 3 months and my first 2 periods were around 10-12 days long and i would get cramping or spotting beforehand but This month im 10 days late according to this app and I haven’t had any period symptoms. I felt crampy a week and a half ago but still no period. Ik its common for your period to stop after a year of use but its only been 3 months. Is this normal? Should i be worried? I would like to know some of you guys’ experiences 🙏🏾🙏🏾