We are sorry to hear of your difficulty conceiving.
In this case, you may perform a
hefsek taharah on the
fourth day. If this does not result in pregnancy within a few months, we suggest consulting a fertility specialist for guidance if you have not already. This is because
PCOS can affect fertility, and treatment of PCOS can often help a woman to conceive.
You may also find it helpful to consult a Yoetzet Halacha Fertility Counselor. (This is a free service, details
here.)
Please write back with any further questions.
This response was updated on 15 November, 2020.