Thanks for using "Ask The Doctor" for posting your query.
If the condom was on and there was no ejaculation then there is practically no chance of getting pregnant. You can be sure of that. Moreover, if your partner has had periods then the possibility is next to impossible.
Hope this helps,
Wish you a good health.
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.