When to test when you have pcos

Jodie
I'm at a loss.  I have pcos and very infrequent cycle because of it.  I'm on day 37 and still no period.  Subconsciously I don't like taking pregnancy test.  I've had to many negatives in the past.  I've felt like my period should have started like a weeks ago with cramping and weird abdomen pain.  Not only that I've been nauseous and light headed off and on. These all can be signs of getting my period.  I seriously hate pcos because you really get your hopes up and it's always negative!   What would you do?   Wait a couple days of just do it and take the test?  I need help!!!