Premature ejaculation is not cause of not being able to conceive, PCOD may be the cause as it is associated with No ovulation or irregular ovulation.  The problem is while conceiving for the first time,  once you have a child then further conception would be normal,  don't worry For premature ejaculation,  ask your husband to apply Xylocaine jelly 2% and wear a condom when erect. Later the condom be taken off and jelly cleaned