Pregnancy Test Calculator

Find out the best day to take a pregnancy test based on your cycle.

Cycle, Ovulation & Fertility

When to take a Pregnancy Test

Find the most accurate day to take a pregnancy test based on your cycle.

Enter the first day of your last period.

Input your average cycle length.

We'll tell you the earliest day you can test for accurate results.

Can I test before my missed period?

Some early response tests can detect hCG up to 6 days before your missed period, but accuracy is lower.

What is a false negative?

When you are pregnant but the test is negative because you tested too early.