Thank you for your medical query at AskTheDoctor.com
I understand your concern.
The chances of getting pregnant are least when the woman is on her period and a week before it. These are considered to be the safest days, with a minimum pregnancy risk. This is because the ovulation occurs between the second and the third week of periods considering a regular 28-30 day cycle.
So the chances of getting pregnant a week before period are minimal.
Hope this was helpful,
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.