Thanks for the query.
If your query is for urine based home pregnancy test, then it is most sensitive only after 7 days post missed periods. But if you feel that the symptoms are due to pregnancy then you can opt for a blood serum beta hCG test after 7 days of intercourse to check for raised or low hCG levels which can confirm or rule out pregnancy respectively.
I hope I have answered your query.
Wishing you 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.