<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi. I am Laila. Female, age: 30. I am trying to conceive for the last 3 months. But my menstruation has been very irregular for the last 34 months very little bleeding , no menstruation in 2 months etc. My doctor gave me Primolut N- 5 mg and told me to have it 3 times a day for 21 days starting from the 5th day of my last menstruation . Doctor also told me to continue trying to conceive in the mean time. What if get pregnant during those 21 days. Does primolut have any negative effect while I am trying to conceive a baby?  <response>: HELLO madam, welcome to Chat Doctor, you are anxious to conceive and the treatment you are presently on is the first line treatment given. Primal N tablets contain the active ingredient norethisterone, which is a synthetic hormone similar to the naturally occurring sex hormone, progesterone. In women, progesterone is responsible for the development of a healthy womb lining endometrium that is necessary for pregnancy. This helps maintain a healthy womb lining for the ongoing pregnancy. So be optimistic and continue with your treatment. May god bless you. Take care. 