Late Ovulation

Hi everyone, I'm curious if anyone has any insights. For the last 6 months, my cycle has been increasing in length. Before my hormonal IUD, they were typically around 32 days but heavy. I’m curious if the long cycles are more likely due to PCOS or something else, like exercise or stress. For reference, I'm 38 and I’ve been off the hormonal IUD for 9 months. Thanks in advance!