Pregnancy After Cancer and Unprotected Sex: Clarifying the Timeline

Correction: Sperm survive in the female reproductive tract for a maximum of 5 days. Pregnancy from intercourse three months ago is biologically impossible.

If you have had unprotected sex recently (within the last 5–7 days), pregnancy is possible. Take a pregnancy test if your period is late or you have symptoms.

Cancer History Considerations

• Some cancer treatments (chemotherapy, pelvic radiation, surgery) affect fertility. Discuss reproductive status with your oncologist.
• If you are in remission and not using contraception, pregnancy can occur with recent exposure.
• If pregnant, early prenatal care is crucial—inform all providers of cancer history for coordinated management.

Do not rely on outdated misinformation. Use accurate fertility awareness and contraception counseling.