HI, I got PCOS ...trying for baby .I 'm taking Metformin, Follision for one yrs and Duphaston for 5 months. Doctor also suggests me to take Letrozole from the second day of my period. My husband is also taking medicine (vitamin-minerals). I'll be 33 in this yr. My question is how long I can take Duphaston, letrozole , metformin .And another ques.do IVF , IUI work?? I dont have diabetic, no thyroid prob....