Hello, thanking for asking your query.
Your doctor has suggested Duphaston which is used in infertility
due to inadequate luteal phase in menstural cycle. Folic acid
improves the chance of female fertilty. So have faith in your doctor. In the mean while there are few things which you can do from your side.
Relax , dont get anxious, stress is one of the cause for difficulty in conceiving.Practise relaxation.
Have Healthy food habits.
Daily exercise. If you are overweight
, try to reduce your weight.
Have Good sleep.
Wish you all the best & take care.