Maybe you have just turned 35 and noticed how often that number comes up in conversations about fertility. Maybe you are not ready to have a baby yet but want to understand your options. Or perhaps you have been trying for a few months and are starting to wonder whether something is wrong. In each case, the same question comes up: when to check fertility, and what testing actually tells you.

The good news is that fertility testing is simple, informative, and does not commit you to any treatment. A baseline screening can give you a clearer picture of where you stand today, so you can plan with more confidence.

This guide explains why age 35 is a commonly cited benchmark, who should consider proactive screening, what a baseline fertility screening includes, what the results do and do not tell you, and what happens after screening. At Hanabusa IVF, we believe clear information helps you make confident choices, and that every plan should be built around the individual.

Why Age 35 Is a Commonly Cited Benchmark

Fertility does not drop off suddenly on a 35th birthday. Instead, it declines gradually over time, with the decline becoming more noticeable for many women in their mid to late thirties and accelerating after 40.

Two changes drive this decline:

• Egg quantity. Women are born with all the eggs they will ever have, and the number decreases steadily over time.
• Egg quality. As women age, a higher proportion of eggs have chromosomal abnormalities.

Professional guidelines suggest different timelines for evaluation based on age:

• Under 35: Consider an evaluation after 12 months of trying.
• 35 to 39: Consider an evaluation after 6 months of trying.
• 40 and older: Consider an evaluation right away.

"Thirty-five is a helpful reminder, not a deadline. What matters most is understanding your own body and timeline, so you can make choices that feel right for you." - Dr. Diana LeBlanc, a Fertility Specialist at Hanabusa IVF

Who Should Consider Proactive Screening

You do not need to be actively trying to conceive to benefit from fertility testing. Proactive screening may be especially helpful if you:

• Are 35 or older and planning to have children in the future
• Are thinking about delaying pregnancy
• Are considering egg freezing
• Have irregular or absent periods
• Have a history of endometriosis, pelvic infections, or pelvic surgery
• Have a family history of early menopause
• Have experienced two or more miscarriages

What a Baseline Fertility Screening Includes

A baseline fertility evaluation usually combines blood tests, an ultrasound, and sometimes imaging. You can learn more on our diagnosis and testing page.

Ovarian reserve testing:

• AMH (anti-Mullerian hormone): A blood test that reflects the number of eggs remaining. Our guide to low AMH levels and what the numbers mean explains how to interpret results.
• Antral follicle count (AFC): A transvaginal ultrasound. Our article on antral follicle count explains this test in detail.
• FSH and estradiol: Blood tests usually done on day 2 or 3 of the cycle.

"I often see patients who are frightened by a single AMH number. We look at the whole picture together, and very often the plan feels much more manageable once we do." - Dr. Lyndon Chang, Medical Director at Hanabusa IVF

What the Results Do (and Don't) Tell You

Testing provides helpful information, but it is important to understand its limits. AMH and other ovarian reserve markers do not reliably predict natural conception. A low AMH does not mean you cannot conceive, and a normal AMH does not guarantee you will.

If your results suggest lower ovarian reserve, our page on diminished ovarian reserve explains what that means.

What Happens After Screening

Your next steps depend on your results and goals. Common paths include continuing to try naturally, egg freezing, starting treatment, or further evaluation.

If you would like to know what to expect at your appointment, our first visit page explains the process.

Frequently Asked Questions

Should I get fertility testing if I'm not trying to conceive yet?

It can be helpful, especially if you are 35 or older, considering egg freezing, or have risk factors.

What does a baseline fertility screening include?

A baseline screening often includes AMH, an antral follicle count, day 2 or 3 FSH and estradiol, thyroid and prolactin tests, a pelvic ultrasound, and sometimes an HSG.

Does a normal AMH level guarantee I can get pregnant naturally?

No. AMH reflects egg quantity, not egg quality.

When should I see a fertility specialist instead of my OB-GYN?

Consider seeing a fertility specialist if you are 35 or older and have been trying for 6 months, if you are over 40, if you have irregular cycles or known reproductive conditions, or if you want to explore egg freezing or IVF.

Curious About Your Fertility Baseline?

At Hanabusa IVF, we interpret results thoughtfully and build every plan around the individual. Schedule a consultation to discuss proactive fertility testing.

See all supporting studies and references used to produce our content: CLICK HERE