Do I have a problem?

Just to preface I have already made an appointment to my see my OB My husband and I started trying two months ago the first month I got my period. And right now I’ve already missed my period by two weeks. When I look back in my calendar, it says that I ovulated around the week of the 17th in November. I took a test yesterday and it says I am negative. My question is, is it too early for me to test? Or do I potentially have a bigger issue, like PCOS. Has anyone had any similar situation happened to them?