Hi my LMP was Dec 18-22. We had unprotected contact last January 1. Took 4 nordette pills on january 2 (10 hours later), then drank another 4nordette after 12hours. During that first and second dose, i had nausea, feels like vomiting, abdominal cramps, lower left back pain, and feeling sleepy and overall feeing of being sick. Unsatisfied, cone January 4, i drank another 4 nordette pills at 6am, same experiences. Until now, January 14, i still don't have Withdrawal bleeding or menstruation. When i read my period tracker, january 1 was my ovulation. Am i at risk of pregnancy? Please somebody help. Thanks