Hi...I Am 30 Years Old And I Am Trying To

Hi...I am 30 years old and i am trying to get pregnant for a second child... I had TVS last month of April and have polycistic ovaries. My OB gave me fertyl 50mg and I started taking it last May 2 but no pregnancy occurs. I took again fertyl last May 29 and June 29 with tablet since day 2 til day 5 of my period. but no pregnancy occurs. It was 3 mo ths already but no pregnancy occured and i stop taking the tablet on my next peeiod July... I have my menstruation now August 30 and I want to take fertyl super 100mg hoping to get pregnant soon... is this ok? What is my chances of getring pregnant?