Pcos and pregnancy

So I am 4 days late for my period and I have PCOS. I have a regular 32 day cycle for the last 3 years since I been on metformin. Took a pregnancy test yesterday (negative). But I’m so exhausted like can’t make it through the day without a nap and have some nausea. This isn’t a normal pms symptom for me. Usually stomach cramps and back pain. DH and I were intimate during the fertile period, but use pull out method (I know not the most responsible). Nervous of my chances of being pregnant or that my pcos is acting up again....