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If a couple is not having baby inspite of having unprotected sex then it is called infertility
and then you and your husband will need to get investigated to find the cause of infertility.If the semen analysis
of your husband is normal;you have regular cycles with ovulation ;and the fallopian tubes are patent then you will conceive.The problem you have right now is PCOD
which itself can cause disturbed periods.Please keep follow up with your Gynaecologist and get investigated and treated accordingly and you should conceive after proper treatment.