Hello Doctor, My friend had her last period on the 24th of nov2011, and started taking Norithisterone 10mg from the 17th December till the 4th January 2012 to postphone her period, but even after stopping the drug her periods never started and a urine test showed that she is pregnant. she is worried if the drug will cause any abnormalities to the unborn baby. Please offer advice if she can carry on with her pregnancy or does she have to terminate the pregnancy. My friend is 30 yrs old, had her 1st ceaserean baby 7yrs ago. height is 5.4ft,otherwise healthy. n h
Hi, Norethisterone, if taken to delay periods and if you had unprotected sex during this course of time, the chances of becoming pregnant is very high. You mentioned positive pregnancy test too. However, norethisterone is contraindicated during pregnancy, as it might result in minor birth defects in fetus. It causes mild masculinization of the external genitalia of the female and hypomanias in the male fetus. It's better to consult your doctor once and do a USG for further assistance. Take care. Hope I have answered your question. Let me know if I can assist you further. 