Scared to test

I have PCOS and 4 months ago I started taking prenatal vitamins to try and help get pregnant. My last three cycles went from being 45plus days long to 32-35. I ran out of my prenatal vitamins on July 12th and haven’t gotten new ones yet. I am now on cycle day 36 so am officially a day late. Could it be because I haven’t had the vitamins for over a week or could I be pregnant? The vitamins ran out two days after my fertile window ended. Would you test or wait a few more days? I’m just not ready to see another negative test I guess lol I don’t have any of my normal PMS symptoms at all. I have some minor minor cramping and breast tenderness but nothing else at all.