Free family guide · Early pregnancy

How soon can you take a pregnancy test?

The Office on Women's Health (OWH) says home pregnancy tests check urine for a hormone called hCG.[1]

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Sources on this page: OWH; NHS; NICHD

This page shares what health organizations say. It is not medical advice. It is general information. Talk to your doctor, midwife or pediatrician about your own situation.

In an emergency, call 911.

When to take the test

OWH says results are more reliable about a week after a missed period.[1]

It says a negative result from an early test may need to be repeated.[1]

Sources differ

  • The Office on Women's Health (OWH) says results are more reliable about a week after a missed period.[1]
  • The UK's NHS says some home tests can tell after about 3 and a half weeks of pregnancy, and are 99% accurate.[2]

How to read the result

OWH says to follow the directions on the package.[1]

It also says to check the control indicator on the test.[1]

After the test

OWH says to call a doctor after a positive result.[1]

It also says to call a doctor if you get two negative results but still think you are pregnant.[1]

NICHD says the first prenatal visit usually happens after about week 8.[3]

Signs that lead people to test

The National Institutes of Health (NICHD) says a missed period is the main sign of pregnancy.[4] It says symptoms vary and do not confirm a pregnancy by themselves.[4]

Questions families ask

How soon can I take a pregnancy test?

OWH says results are more reliable about a week after a missed period.[1] It says a negative result from an early test may need to be repeated.[1]

What does a home pregnancy test measure?

OWH says home tests look for the hormone hCG in urine.[1]

My test was negative, but I still think I am pregnant. What now?

OWH says to call a doctor if you get two negative results but still think you are pregnant.[1]

What should I do after a positive test?

OWH says to call a doctor after a positive result.[1]

Free from UpOnly Learning. Written for families of every faith. No outside ads and no affiliate links. Every fact on this page comes from the sources listed below. How we source and review these pages

Updated 2026-10-24: first published.

Sources

All sources were opened and checked on the date shown.

  1. Office on Women's Health (HHS). Knowing if you are pregnant. Checked October 24, 2026.
  2. NHS (United Kingdom). 4 weeks pregnant guide. Checked October 24, 2026.
  3. Eunice Kennedy Shriver National Institute of Child Health and Human Development (NIH). What happens during prenatal visits?. Checked October 24, 2026.
  4. Eunice Kennedy Shriver National Institute of Child Health and Human Development (NIH). What are some common signs of pregnancy?. Checked October 24, 2026.