Know your precise
delivery week.

Meet Arrival™, an at-home blood test offering a precise, personalized delivery-week prediction to support pregnancy planning.

Arrival predictions are more precise than traditional due dates.

Your unique biology and lifestyle influence the timing of your baby’s delivery. Traditional due date methods, like last menstrual period (LMP) assume all women go through the same cycle. Arrival is 40x more precise, using data from your body rather than antiquated assumptions. Arrival helps plan with more certainty.

How it works

1. Request Arrival Online

Complete a brief, secure questionnaire to request your Arrival Test kit. Your data and personal information are always protected.

2. Collect Your Sample

Collect your sample during weeks 24–28 of pregnancy using easy-to-follow instructions, then send it back with the prepaid shipping label.

3. Analyzed By experts

Our expert team analyzes your blood biomarkers and shares your personalized delivery week report via a secure, encrypted email.

What women say after using The Arrival Test

92%

felt more confident planning around their delivery timing

78%

said Arrival helped them make concrete plans for time off, childcare, or support

9 out of 10

would recommend Arrival to a friend who’s pregnant

Helps you plan with confidence around your baby’s delivery.

With a clearer sense of timing, you can plan the details that are hard to time without guessing.

  • Arrange childcare
  • Book the babymoon
  • Schedule family travel
  • Plan pet care
  • Pack your hospital bag
  • Organize baby essentials
  • Prepare the nursery
  • Coordinate maternity leave
REQUEST YOUR TEST

Arrival is now available. Get the clarity you need to plan for your baby’s arrival with confidence.

A proof-of-concept study

Clock Proteins Have the Potential to Improve Term Delivery Date Prediction

What women say after using The Arrival Test

“The report helped me feel calmer about planning. Knowing my most likely delivery week made it easier to coordinate support and stop second-guessing every decision. It took a huge weight off my shoulders.”

— Lauren M., Denver ⭐️⭐️⭐️⭐️⭐️

“I’m usually very type-A, but pregnancy has a way of making you feel out of control. Having something concrete to plan around helped me feel grounded again. I finally started making decisions instead of just worrying about them.”

— Danielle M., Boston ⭐️⭐️⭐️⭐️⭐️

“I’m a planner by nature, and even with a due date, I felt stuck. Once I had my report, I finally felt like I could make real decisions around work, family support, and everything in between.”


— Jasmine P., Oakland ⭐️⭐️⭐️⭐️⭐️ 

References

  1. Vos, S.C.; Anthony, K.E.; O’Hair, H.D. Constructing the uncertainty of due dates. Health Commun. 2014, 29, 866–876. [Google Scholar] [CrossRef] [PubMed]