Ovulation is all over the place!

nina
I have pcos. I keep ovulating a really really irregular times in my cycle. I typically have 60 day cycles on average. One cycle I ovulated on da y 57, then got my period 3 days later, last cycle I ovulated bang smack in the middle day 30, this one I am already getting lh surge so will ovulate in the next 5-10 days whi Ch makes ovulation day 15-20 of a supposed 60 day cycle. I'm so confused :/