Ttc, with thin pcos and very irregular cycles

My fiancée and I have been trying for 9 months now. I was diagnosed with moderate pcos when I was 18, with 70+ follicles in each ovary. Now that I'm 21, I have extremely irregular cycles, and can't predict when I'm ovulating, due to the irregularities. Along with not knowing, if I take an ovulation test, it says I'm highly fertile every day of the month. I've been on metformin for 2 months now, and stil nothing. Two years ago I did have a miscarriage at 8 or 9 weeks. I'm so discouraged that there more wrong than just the hormone imbalance. Any advice on how to catch when I'm ovulating?