Hello , u can consult infertility specialist initally for simple natural follicular study cycle to see whether your egg are forming on time or not and so u will given perticular day for relation when chance to get pregnant are most try this way for next 2 to 3 month during this try to keep your thyroid hormones level in a normal range which is  a very important. Don't go directly for  detailed investigation still u won't get concieved even by doing this for next 3 cycle then go for  in-depth investigation including of your partner too

I am an infertility specialist. There can be numerous reasons for a couple who havent conceived. Pls try naturally for atleast 12months before seeking any treatment. If u do not concieve after a year, pls get both the partners investigated completely to figure out the cause. Incase u r too anxious bout it,pls visit an infertility specialist.

Try ovulation induction with follicle monitoring and timely intercourse

You need to consult a Infertility Specialist near your place. You need to undergo some blood test and ultrasound.