What are the days after intercourse on the ovulation day when implantation occurs? Should you rest well?

Patient's question:

No

Doctor's answer:

As long as sexual intercourse occurs during the ovulation period, implantation should take place within 1 day after intercourse. Implantation signifies the beginning of pregnancy, and an ultrasound examination can be performed around 50 days later. At this stage, a gestational sac can be observed. The pregnancy duration is calculated based on the last menstrual period.