Hi,
It may lead to side effects. Primolut-N contains the hormone
progesterone, which prevents your womb lining from shedding and hence used to delay the periods. It is not a contraceptive hence and cannot prevent
pregnancy following an unprotected sex.
Barrier methods such as condoms or diaphragm are recommended following an unprotected sex while taking Primolut-N.
Now, since you have had unprotected sex yesterday, the
emergency contraceptive pill (I pill) may be taken as early as possible in order to achieve maximal efficacy. When you are taking pill along with Primolut-N it can affect your menstrual cycles causing irregular bleeding or spotting,
stomach upset, vomiting, breast discomfort, changes in sexual desire, edema, etc.
Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Mohammed Taher Ali, General & Family Physician