Norethisterone is a type of progesterone hormone pill that can be used for various reasons, eg heavy periods, delaying periods etc.
However, it is important to note that Norethisterone is NOT a contraceptive pill. Meaning, it does not provide you with birth control effects.
Hence, to answer your question simply, the answer is yes, there is a chance you may get pregnant if you are taking this medication and having unprotected intercourse without additional contraception.
If you are taking Norethisterone, it is important to speak to your doctor about additional contraception if you are not intending to get pregnant.
Regards,
Dr Michelle Chia