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If you need help to conceive you should go to a good fertility
center with your husband & get both of you thoroughly evaluated. So that all the factors preventing a pregnancy
are notified & a treatment specific to you as a couple is chosen for you.
Remember PCOs alone may not be solely responsible for your sub-fertility there may be other contributing causes as well.
Treatment options for women with PCOs who are trying for pregnancy naturally & failed include:
1.Weight reduction if they are overweight
2. Ovulation induction
if they are not ovulating naturally.
3. Laparoscopic ovarian diathermy.
4. In Vitro Fertilization
Please note that if any other cause is found in addition to it. Options may differ so a complete evaluation is essential.
Your odds of getting pregnant differ depending upon your age, presence of any other fertility problem, & the choice of treatment you receive.
I tried to give you a brief outline. Rest you may discuss with your fertility specialist.
Best of luck.