Hi,
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PCOS usually responds to treatment with insulin modifiers as most common cause for PCOS is insulin resistance. Ovarian drilling is also known to trigger ovulation (and treat PCOS), the exact cause for this is still unknown. Continue the treatment as prescribed by your treating gynecologist. If the semen analysis report of partner is not good, further evaluation would be needed to look for the underlying cause and treat it. IVF or ICSI done with washed sperms (healthy sperms) can help you with pregnancy. Discuss about further options with your treating gynecologist or visit an Infertility specialist for further assistance.
Take care.