I got polycystuc ovarius. I got a 3years old child. And we are tryng to have a baby since july 2011. What shall we do?

Need meds. If you have polycystic ovaries, you have several medications availiable which can normalize your body's phsiology and help you get pregnant again.
See a Ob-GYN. See a ob-gyn md who can confirm that you have polycystic ovaries and can offer treatments that can initiate ovulation and assist you in geting pregnant.