When does implantation usually happen?

Implantation typically occurs 6–12 days after ovulation, most commonly around day 9. It happens when the fertilized egg attaches to the uterine lining.

Can I feel implantation?

Some people notice light spotting or mild cramping, but many feel nothing at all. Implantation bleeding is usually lighter and shorter than a period.

When can I take a pregnancy test after implantation?

Most home tests can detect pregnancy about 10–14 days after ovulation, or from the first day of a missed period. Testing too early can give a false negative.

Implantation Calculator

Estimate your implantation window and earliest pregnancy-test date from your last period.

First day of last period

Average cycle length28 days

Estimated ovulation

Wednesday, September 16, 2026

Implantation window

Sep 22, 2026 – Sep 28, 2026

Earliest test date

Saturday, September 26, 2026

Testing earlier than this often gives a false negative.

This is an estimate for information only — only about 1 in 20 babies arrive on their due date. Always confirm dates with your midwife or doctor.

Related calculators

Ovulation calculator Due date calculator Conception date

Implantation Calculator

Frequently asked questions

When does implantation usually happen?

Can I feel implantation?

When can I take a pregnancy test after implantation?