🧫 When to Take a Pregnancy Test Calculator

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Most accurate home test from
Fri, 23 Oct 2026 (first day of the missed period — about 99% accurate)
Earliest possible home test
Mon, 19 Oct 2026 with a sensitive (10–25 mIU/ml) test — may still be negative
Blood test (beta hCG) can detect from
Sun, 18 Oct 2026 – Tue, 20 Oct 2026
Estimated ovulation
Fri, 9 Oct 2026
Implantation window
Thu, 15 Oct 2026 – Wed, 21 Oct 2026 (most often around Sun, 18 Oct 2026)
Today (10 days past ovulation)
Testing is possible with a sensitive test (about 25–50% of pregnancies show)

Use first-morning urine for early tests. A negative test before the missed period is not final — test again 2–3 days later. Irregular cycles make the dates less certain.

Breakdown

Days past ovulationPregnancies detected by a sensitive test
8 DPO~10%
10 DPO~30–50%
12 DPO~80%
14 DPO (missed period)~99%

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📘 About the Pregnancy Test Date

A pregnancy test detects hCG, which is made only after the embryo implants — usually 6 to 12 days after ovulation. hCG then takes a few days to rise high enough to show in urine.

That's why the most accurate time to test is the day your period is due. Sensitive early tests can be positive a few days sooner, but a negative result before your missed period doesn't rule out pregnancy.

✏️ Worked example

Period started 25 September 2026, 28-day cycle

You enter
First Day of Last Period25 Sep 2026
Cycle Length28 days
You get
Most accurate home test fromFri, 23 Oct 2026 (first day of the missed period — about 99% accurate)
Earliest possible home testMon, 19 Oct 2026 with a sensitive (10–25 mIU/ml) test — may still be negative
Blood test (beta hCG) can detect fromSun, 18 Oct 2026 – Tue, 20 Oct 2026
Estimated ovulationFri, 9 Oct 2026
Implantation windowThu, 15 Oct 2026 – Wed, 21 Oct 2026 (most often around Sun, 18 Oct 2026)
Today (10 days past ovulation)Testing is possible with a sensitive test (about 25–50% of pregnancies show)

Fri, 23 Oct 2026 (first day of the missed period — about 99% accurate).

Try this example →

❓ Frequently asked questions

How many days after sex can I take a pregnancy test?

Usually about 14 days after unprotected sex, or from the day your period is due.

Can I test before my missed period?

Yes, with a sensitive test from about 10 days after ovulation, but many pregnancies won't show yet. Test again if your period doesn't come.

Is a blood test more sensitive?

Yes — a blood beta hCG test can detect pregnancy from about 9–11 days after ovulation.

What time of day is best?

First-morning urine is the most concentrated, which helps early tests.

What people are saying
★★★★★
Anonymous · 14 Oct 2026