Hello, Thanks for writing to us. The tablet Siphene is given for ovulation induction, Susten for support of early pregnancy if you conceive and productive F is a multivitamin tablet. Eltroxin is given as you are hypothyroid and this could be one of the cause for infertility. You have not mentioned anything about regularity of your menstrual cycles.I would advise you to get follicular study, that is serial ultrasound scans done to know the growth of the eggs and to know the probable timing of ovulation. Also, investigations of the husband including semen analysis is equally important. Good luck.