Is It Safe To Take Benforce And Nacfil For Delayed Periods?

hi doctor i am priya i got married on sep 16th 2011 for past 4 months i didnt get periods,i thought i was conceived,but it is negative,after that i went to hospital so the doctor gave me tablet for periods,now i got periods for last 2 months,i have taken scan everything is normal,and now am taking tablet-benforce,and nacfil daily morning and after that i gone for follicullar study now that it is ruptured,doctor told me to keep contact ..when i will conceive doctor..how many days i have to keep contact..i want to conceive soon..