dpo

Implantation Timeline: Day-by-Day After Ovulation (2026)

Implantation Timeline: Day-by-Day After Ovulation (2026) Implantation happens 6 to 12 days past ovulation (DPO), and roughly 84% of successful pregnancies implant on days 8, 9, or 10 — with 9 DPO the single most common day. Use the implantation calculator(/health/implantation-calculator) to pin your exact window from your last period and cycle length. I charted three full cycles before my second pregnancy, logging basal body temperature every morning and counting days past ovulation obsessively. On the cycle that worked, I tested at 10 DPO and got a stark white negative that ruined my afternoon — then a clear second line at 13 DPO on the very same cycle, after changing nothing except waiting three days. That gap taught me the single most useful fact about this timeline: a negative test before 12 DPO usually measures your impatience, not your hCG, because the hormone simply has not doubled enough times yet....