Hello Thanks for writing to us with your health concern. Before stressing out so much, it is best to confirm that you are pregnant. Regarding the issue of pregnancy, it is best to take a pregnancy test straight away. That way you wont worry without reason. Several reports have suggested the risk of hypospadias in the general population, approximately 5 to 8 per 1000 male births, may double with progestin exposure within the first four months of pregnancy. Although there are insufficient data to quantify the risk to exposed female fetuses, progestin use within the first trimester has been associated with mild virilization of the external genitalia. Norethindrone has been assigned to pregnancy category X by the FDA. Animal studies have not been reported. Postmarketing human pregnancy data have revealed a possible association between first trimester progestin use and genitourinary anomalies in male and female fetuses. Norethindrone use is considered contraindicated during pregnancy. Since you have taken it only for 2 days, chances of any adverse effects are very low, as you havent taken it during early pregnancy. All the best Please feel free to discuss further.