Long cycles with pcos

Helz
I am just wondering about ovulation with pcos. This year I have had two incredibly long cycles, currently in CD81. I just don't know if I'm not ovulating at all or I could still ovulate even if it's a long cycle? I don't know why they've taken a sudden turn for the worse but it's driving me insane. I don't know if it's even worth trying if I'm not even ovulating. I've had three periods this year! It's really getting me down. My body just isn't playing fair! I just can't really find any answers. I've been trying to lose weight to help ttc, managed to lose 26lbs, not quickly by and stretch. I thought that would help regulate but it seems to have done the opposite.