First Response Is The Answer

First Response Is The Answer video

Am I pregnant? There’s no more important question. And no matter where you are in your pregnancy journey, there’s no more certain answer5. First Response is by your side, every step of the way.


How Soon Can You Take a Pregnancy Test?

If you are experiencing early pregnancy symptoms, a missed period or suspect you may be pregnant, use the First Response™ calculator tool. Find out the earliest day you can take a pregnancy test by entering the first day of your last period.

When did your last period begin?

Please enter a valid date.

What is your average cycle length?

Start with the first day of one period and count right up to the day before the first day of your next period. Count the first day of bleeding or spotting as day one. The average cycle length is 28 days, but can range anywhere from 20 to 45 days.

You can take a pregnancy test

Am I Well-Informed?

Whether you are at the beginning of your pregnancy journey, trying to conceive, struggling with infertility, or in your third trimester, we’re here to guide you along the way.

Pregnancy & Fertility Products

First Response product lineup

Learn how First Response can help you through your TTC journey with our pregnancy and ovulation tests and fertility-friendly lubricant.


There will be life video

Hope and joyful moments will guide us through these uncertain times. There is so much joy in bringing a new life into the world. So wherever you are in your pregnancy journey, First Response is here to reassure and support you.

The desiccant disc should not be eaten.


*Data on file.

1 FIRST RESPONSE™ detects the pregnancy hormone 6 days sooner than the day of your missed period (5 days before the day of expected period).

2 >99% accurate at detecting typical pregnancy hormone levels. Note that hormone levels vary.

5 Among home-use pregnancy tests. Excludes direct-to-consumer brands. Based on >99% accuracy in detecting the pregnancy hormone from the day of expected period.

6 Voted most trusted Pregnancy Test brand by American shoppers based on the 2020 BrandSpark® American Trust Study.