2 doctors weighed in:

Does implantation bleeding start the day after unprotected intercourse?

2 doctors weighed in
Dr. Carol Peters-tanksley
Obstetrics & Gynecology
1 doctor agrees

In brief: No

Implantation bleeding occasionally occurs as the embryo attaches to the uterine lining.
Implantation begins about 6 days after ovulation. Spotting a day after intercourse would not be implantation from an embryo formed on that day.

In brief: No

Implantation bleeding occasionally occurs as the embryo attaches to the uterine lining.
Implantation begins about 6 days after ovulation. Spotting a day after intercourse would not be implantation from an embryo formed on that day.
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