Meprate tablet for 15 days

Hi
iam married for 1.5 years and trying to conceive now. I had irregular periods earlier. consulted my gnynec. First he gave me meprate for 5 days. Then i got my periods. my blood tests also revealed normal results for thyroid. then my doctor prescribed femilon tablets for 3 cycles(3x21 days). Then i had spotting bleeding for 3 weeks after my last cycle and each time it was was only for 2 days. Now i consulted my doctor and he prescribed me meprate/duphaston tablets for 15 days. I have got meprate tablets now and planning to take it from tomorrow onwards. Can somebody tell me,Which one is better to take ?. and what exactly is the problem like