Which medicine can I take to quickly conceive...

I want drug to get pregnancy

Well ,there is no drug that you can take and get pregnancy but there are drugs that activate ovaries to produce many ovaries thus increase chane of pregnancy. You can take Clomiphene drug tabs from the second day of menses for five days or you can take LETROZOLE tabs twice daily for five days.

Investigations to do

You can do prolactin level and TSH initially to check up

Advice

You can follow your case with gynecologist doctor