Choose a test
Search by test, marker, or how you feel. Panels and at-home kits too.
Rises only after ovulation, so it is the hormone that shows whether a cycle ovulated. Cycle day sets the reading.
A quick lab visitAI-generated. For information only, not medical advice or a diagnosis.
Progesterone is the hormone the ovary makes after ovulation, so a level in the second half of the cycle is the usual way to see whether ovulation happened. It stays high in pregnancy and falls to trigger a period otherwise.
Timing matters: the draw is timed to the second half of the cycle, and a clinician can advise the day. A low value early in the cycle is normal and means nothing on its own, which is why the cycle day is recorded with the result.
Progesterone is low before ovulation and high for about a week after, so the same person can have very different values a few days apart. It stays high in pregnancy and with progesterone-containing medicines.
Stress, breastfeeding, and cycles without ovulation keep it low. Because the same person can read very differently a few days apart, a low value is only meaningful when the draw was timed to the second half of the cycle.
Kits you collect yourself and mail back to the lab. Ships free, both ways.
Search by test, marker, or how you feel. Panels and at-home kits too.
They sign the lab order when it is appropriate. If not, a full refund.
Walk into one of 2,000+ labs, or a kit ships to your door.
Beside the lab’s reference ranges. Yours to keep and share.
Lab Pass replaces the $15 clinician review fee on each request with one membership: $15 a month or $150 a year, however many tests you order.
Every order is reviewed by a licensed clinician, and every test runs at a CLIA-certified laboratory.
Every available lab is certified under the Clinical Laboratory Improvement Amendments, meeting both state and federal standards with regular independent inspections.
Every result is reviewed by an independent, board-certified physician licensed in your state.
Every lab we use runs regular internal quality checks, participates in proficiency testing, and complies with all federal and state lab regulations.
Your health data is encrypted at bank-grade standards. We never sell it, never share it without your consent.
The things people ask most. Anything else, our care team answers by phone, text, or email.
No. Tell us what you want tested, and a licensed clinician in your state reviews your order. When it’s appropriate, they sign a lab order that works at any of the listed locations for this test.
Everywhere lab tests are informational and don’t diagnose conditions on their own. Available to adults 18 and older; test availability varies by lab location. Talk with your care team about what your results mean for you. Orders are reviewed and, when appropriate, signed by a licensed clinician in your state. If a test isn’t approved, you receive a full refund. All testing is performed at CLIA-certified laboratories. Your results are private and protected. Everywhere is not for emergencies: if you think you may be having a medical emergency, call 911 or go to the nearest emergency room.