I was having my menses for 17 days. Dr ordered labs and every hormone came back normal. I have irregular periods where i miss a month here and there. When i bled 17 days Dr thought it to be caused by inovulation so i took norethindone to stop bleeding i took the pills for 18 days. Had sex on may 1 started bleeding so i stopped taking norethindone. Today is may 7 and my bleeding is very light still. Is this withdraw bleeding or a period? Ive had cramps with this menses but no heavy bleeding. will i ovulate with this cycle? And if i ovulate when will that occure?