When to See a Fertility Specialist: The 12-Month Rule and When to Go Sooner
When to seek a fertility evaluation — including the 12-month and 6-month rules, conditions that warrant going sooner, and what a workup actually involves.
Not getting pregnant right away is normal. Not getting pregnant after a year is a signal. And — a point that often gets missed — some situations warrant evaluation before you start trying, not after. Knowing where you fall changes both your timeline and your approach.
When should you see a fertility specialist?
Under 35: seek evaluation after 12 months of well-timed trying. Age 35 or older: after 6 months. The timeline shortens because egg quality declines more steeply after 35, and waiting a full year means potentially losing time that matters. Some situations warrant evaluation right away — irregular periods, known PCOS or endometriosis, two or more pregnancy losses, or a known abnormal semen analysis.
How long should you try before seeing a doctor?
The 12-month rule applies when you're under 35 and have no known fertility-related conditions. But "trying for 12 months" means 12 months of well-timed intercourse during the fertile window — if you weren't tracking ovulation, the clock may not have actually started. At-home hormone testing (AMH, FSH, thyroid) and home semen analyses can give you useful baseline data earlier, and many fertility clinics see patients proactively without requiring you to have met the 12-month threshold.
What is the 12-month rule for seeking fertility help?
The 12-month guideline (6 months at 35+) is a clinical standard designed to avoid over-treating couples who simply haven't had enough well-timed cycles yet. It's not a hard barrier — it's a starting point. If something specific suggests a problem, you don't need to wait. You also don't need a referral to see a reproductive endocrinologist in most states.
When should women over 35 see a fertility specialist?
After 6 months of well-timed trying, not 12. The shorter window exists because egg quality declines more sharply after 35, making earlier evaluation worthwhile. If you're 38 or older, some clinicians recommend evaluation even sooner — after 3 months — given the steeper age-related changes in both egg quality and cycle regularity.
What is a fertility evaluation and what does it include?
A standard fertility workup evaluates both partners. For the person with ovaries: bloodwork (FSH, LH, AMH, estradiol, thyroid, prolactin), a transvaginal ultrasound for antral follicle count, and a test of tubal patency — usually an HSG or saline sonogram. For the partner contributing sperm: a semen analysis. Half of all infertility involves a male factor, so both are always evaluated. The semen analysis and the HSG are the two tests people put off most — and the two that answer the biggest questions.
What does your OB/GYN handle vs. what requires a fertility specialist?
Your OB can order initial bloodwork and a semen analysis, and can identify some issues. But they typically can't perform an HSG, IUI, or IVF — those require a reproductive endocrinologist (REI). If your OB hasn't mentioned evaluation after 6–12 months of trying, it's completely appropriate to make the REI appointment yourself. You don't need to wait to be referred.
What signs suggest you might have a fertility problem?
Irregular or absent periods are the most consistent signal. Other flags: periods that are very heavy or very painful, a history of pelvic infection or pelvic surgery, known endometriosis or PCOS, two or more pregnancy losses, or a known abnormal semen analysis result. Certain conditions — cancer history, autoimmune disease on immunomodulators, uncontrolled thyroid or diabetes, known genetic carrier status, prior pelvic surgery, family history of early menopause, Fragile X premutation, coming off Depo-Provera, or gender-affirming hormone use — warrant evaluation before you even start trying.