IUD &periods

Madison

i have the IUD i’ve had it since probably july 2019. i have kyleena and when my boyfriend and i have sex we use a condom and he doesn’t finish inside me. last month my period was 7 days late. i had to go to the doctor for something else and they tested me for pregnancy and i wasn’t pregnant. my period is now a week late again this month. is it normal for the IUD to make me not have a period after having it for almost 2 years?