Cysts delay period? help!!

H

I have a 4 cm ovarian cyst, and also have Kyleena iud. My period is about 7 days off from last time, not too worried about pregnancy since I just had an ultrasound for this cyst, but can cysts cause extra irregularities in a cycle? My cycle is irregular anyways but just trying to see if it’s the cyst or the iud?