First Response is here for you on your pregnancy journey! Check out our learning center for expert guidance on trying to conceive, fertility and having a baby.

Online Tools & Calculators

Find your most important dates. Choose the pregnancy calculator that’s right for you.

Ovulation Calculator

Ovulation Calculator

Increase your chance of conceiving by determining your most important, fertile days with our conception calculator.

How Soon Can I Take A Pregnancy Test?

How Soon Can I Take A Pregnancy Test?

Find out the earliest day you can take a pregnancy test. The sooner you know, the better.

How Far Along Am I?

How Far Along Am I?

Find out how many weeks pregnant you are so you can start planning key milestones.

Due Date Calculator

Due Date Calculator

Learn when you can expect your little one to arrive.

ovia fertility

Track ovulation, period and more!