Good Day!i Took Nordette As Ecp Last April 4...its Been

Good day!i took nordette as ecp last april 4...its been 11 days ow and still no withdrawal bleeding...i experienced side effects like breast tenderness,sleepiness and im depress...my last menstruation was march 25...we did the deed last april 3....im worried coz i think im pregnant...we use withdrawal..pls reply..