PCOS & sore boobs. Pregnant or normal PCOS symptom?

I was newly diagnosed with PCOS with in the last year. The last few weeks I have had some significant breast pain. So much so, it makes me think I could possible be pregnant. I have tested a couple of times and it came out negative. I have read that some women with PCOS can have false negatives. Anyone have any personal experience? Breast tenderness is still there