thank you for your query.
Primolut does not prevent fertilization.
However in the event that you do conceive, primolut contains norethisterone
which has adverse effects on the pregnancy
Your doctor hopes to regulate your current cycle before beginning stimulation with Clomid next month.
Hence, primolut which contains progesterone
has been prescribed.
Please discuss with your doctor, as there are various other alternatives to Primolut such as Meprate and Duphaston
, which will serve the pregnancy and also not cause harm in case you ovulate / conceive.