Implantation Calculator
Estimate your implantation window from ovulation or last menstrual period.
Inputs
Results
Earliest
Tuesday, Aug 25, 2026
Most Likely
Friday, Aug 28, 2026
Latest
Monday, Aug 31, 2026
- 1Choose whether you know your ovulation date or only your LMP.
- 2Enter the relevant date.
- 3View the earliest, most likely, and latest implantation dates.
- If you are trying to conceive, pair this with our ovulation or conception date calculators for a fuller timeline.
About the Implantation Calculator
Estimates when a fertilized egg may implant into the uterine lining, based on ovulation or your last menstrual period.
Use when wondering when implantation bleeding or early pregnancy symptoms might appear after conception.
Implantation window ≈ ovulation + 6 to 12 days (most likely around day 9 post-ovulation).
Ovulation on June 10 → implantation most likely around June 19, with a window from June 16–22.
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