Hey Hi I M Trying To Conceive From Last 6

hey hi i m trying to conceive from last 6 months i have irregular periods not always but they skip sometimes like in 1 year 1 month skip i have consult with one doctor he said i have pcod problem so he had given me siphene 100 mg & on my 22nd day of menstrual cycle do serem progesterone test to regulate my periods and ovulation. nw my periods became regular but one of my relative gynecologist suggest me to do USG,AMH FSH LH TSH PROLACTIN test to find out the problem so could you please help e becoz i m confused