Would a pregnancy test shoe the 3 day aftr sex have a redish brown on my pany?

A pregnancy test typically detects the hormone hCG, which is produced after a fertilized egg implants into the uterus, usually taking about 6-14 days after conception. If you experienced reddish-brown discharge three days after sex, it could be implantation bleeding, but it's too early for a reliable pregnancy test result. It's best to wait at least a week after your missed period for the most accurate results. If you have concerns about the discharge or potential pregnancy, consider consulting a healthcare professional.