i am suffering from lean pcod, i used siphene 100mg, premarin 0.625 mg, mhr ,nutricell, argipreg powder and got chemical pregnancy. then i didnt use any tablets for 2 months and no pregnancy. now another doctor advised me the following medicines: argipreg powder, rejumet, duphaston, siphene 100mg. will i get pregnant without using medication in lean pcod