I understand how worried you are about pregnancy. Having unprotected sex 10 days from your menses certainly puts you in a low risk for pregnancy. In that day your egg is almost mature and ready to be fertilized, now since your cycles are less than 28 days this could increase even more the chances for pregnancy.
If your menses don’t show in your due date, a home pregnancy test might be needed and depending on the results, if positive you might want to confirm it with a blood pregnancy test.
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.