Fertility
Trying to conceive, clearly explained.
ASRM- and ACOG-grounded tools for tracking your cycle, reading a semen analysis, and knowing when it's time to see a specialist — every one private, in your browser.
By the numbers
Fertility in the US
- US women 15–49 don't conceive after a year of trying (CDC)
- 1 in 5
- of US men report a fertility problem (CDC)
- ~9%
- chance of conceiving per cycle after age 40, versus ~20% in the 20s (ASRM)
- ~3–6%
- of trying (6 if over 35) before ASRM recommends an evaluation
- 12 mo
Sources: CDC, ASRM. US estimates; figures vary by population.
Track it
Fertility tools & calculators
Free, private, ASRM- and ACOG-grounded — every one runs in your browser, nothing is saved or shared.
- Calculator Ovulation calculator Your fertile window, ovulation day and the earliest reliable test date. Open tool
- Calculator When to see a specialist How long to keep trying before getting evaluated, from ASRM/ACOG thresholds. Open tool
- Calculator Female fertility quiz Ten private questions on the factors that shape female fertility. Open tool
Good to Know
Common questions about fertility
From when to get evaluated to what an AMH result really means.
When should we get a fertility evaluation?
ASRM recommends seeing a specialist after 12 months of trying under 35, or 6 months at 35+, sooner with irregular cycles, known reproductive conditions, or prior pregnancy loss. The When to see a specialist tool walks through your specific timeline.
Is infertility always about the woman?
No. Male factors contribute to roughly a third of cases and female factors to another third, with the remainder combined or unexplained. A semen analysis is one of the first, cheapest tests in any fertility workup.
What does an AMH or ovarian reserve result actually tell me?
It's a marker of egg quantity, not quality, and never predicts pregnancy on its own — it mainly informs how a clinic might plan IVF stimulation. See the AMH & Ovarian Reserve tool for context on your number.
Are these tools a substitute for a fertility specialist?
No. They are educational, grounded in ASRM and ACOG guidance, meant to help you understand your situation and prepare for that conversation — not a diagnosis or a guarantee.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.
Editorial standards and sources
Medically Reviewed · Updated
Reviewed by Dr. Grace Lin, MD, FACOG · OB-GYN
Obstetrician-gynecologist focused on reproductive and sexual health for women: pregnancy, BV, yeast, trichomoniasis and HPV/cervical screening. Our editorial guidelines →
4 Sources
Data & references
- ASRM: Patient resources & clinical guidancehttps://www.reproductivefacts.org/
- ACOG: Infertility FAQshttps://www.acog.org/womens-health/faqs/infertility
- CDC: Infertility FAQshttps://www.cdc.gov/reproductive-health/infertility-faq/index.html
- WHO: Semen analysis reference values, 6th editionhttps://www.who.int/publications/i/item/9789240030787
This page is educational information, not medical advice or a diagnosis. If you have concerns about your fertility, talk with your provider or a reproductive endocrinologist.