Hi.
Yes, pregnancy is possible despite of taking Primolut-N.
Primolut N (
Norethisterone) is a synthetic hormone progesterone which is commonly prescribed to treat irregular menstrual periods, lack of menstrual bleeding,
premenstrual syndrome, to prepone or postpone the periods.
However, it is not an effective
contraceptive hence not used to prevent unwanted pregnancy. If you have sexual intercourse, you should use non-hormonal methods of
contraception (e.g.
barrier methods such as condoms or diaphragm) to prevent the unwanted pregnancy.
Withdrawal bleeding usually occurs within 3-7 days after stopping the Primolut-N pills.
So, in view of the above, there is a possibility of your wife being pregnant.
Kindly repeat the pregnancy test either on an early morning urine sample or do blood hCG test to confirm the pregnancy.
Hope these answer your query.