Thanks for your query.
If you are talking about the menstrual period after the first sexual activity of your life, yes, it is possible as there will be change in the hormonal balance.
If you are talking about this after a regular sex, then no. There may not be any change at all.
I hope this answers your query.
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.