Please help Ovulation occurred but no period

Lisamarie

My partner and I have been TTC since 2017, I suffer with PCOS and have irregular cycles. However recently my cycles have become more regular. We went to our Fertility Doctor in December she performed an internal scan and showed me I had deffinately ovulated in the coming days. According to her and to Glow I am now bettwèen 6 and 12 days late. However all pregnancy tests are coming back negative. Is it possible to ovulate with PCOS and not have a period.