Have you had these symptoms?

Hi ladies, just wondering if anyone else has had some of these symptoms, last month I didn't have anything, very light period and only lasted around two days, ever since that I've felt nauseous and actually been sick, I have headaches which I've never suffered from, I'm tried constantly which is not like me at all and now I'm having slight cramping, And I'm hungry all the time! I don't want to test just yet as af is due Sunday so  trying to last until then!