Basal Antral Follicle Count

No. AFC counts the small follicles visible at the beginning of your cycle, but it cannot predict exactly how each follicle will develop.

During fertility treatment, some follicles may not grow enough to produce a retrievable egg. Some retrieved eggs may also be immature. AFC is best viewed as an estimate of your potential ovarian response, not a guarantee of how many mature eggs will be collected.

Source: ASRM

No. An egg must be mature, fertilize successfully, and continue developing before it becomes a transferable or freezable embryo.

As a broad estimate, around 70% of mature eggs fertilize during IVF (ASRM), and approximately half of those fertilized eggs continue developing into blastocysts. Actual results vary based on age, egg and sperm quality, diagnosis, treatment protocol, and laboratory factors.

Learn more by reading IVF Attrition Rate & Embryo Survival: What to Expect.

No. AFC estimates the number of small follicles present, so it primarily provides information about egg quantity and expected ovarian response—not egg quality, chromosomal health, or developmental potential.

Age remains an important factor when evaluating reproductive potential. A higher AFC does not guarantee healthy eggs or embryos, and a lower AFC does not automatically mean the available eggs are poor quality.

Current ESHRE guidance recommends AFC as a tool for predicting ovarian response rather than pregnancy or live-birth outcomes.

There is no set number. One mature egg can potentially become an embryo, but normal attrition always occurs between egg retrieval, maturity, fertilization, embryo development, and implantation.

Having more mature eggs generally provides more opportunities to create embryos, but egg quantity alone cannot predict IVF success. Your age, egg and sperm quality, embryo development, medical history, and other individual factors all influence your outcome.

There is no proven treatment, supplement, or lifestyle change that will create new eggs or permanently increase your true ovarian reserve.

However, prolonged hormonal contraception can temporarily suppress AFC and AMH in some patients. Under your physician’s guidance, stopping hormonal contraception for 2–3 months may provide a more accurate baseline measurement. This allows existing follicles to become more visible; it does not create additional eggs.

Physicians often recommend the use of hormonal contraception in preparation for a fertility treatment cycle. Follow their guidance and don't stop taking any medications without first consulting a licensed healthcare provider.

Source: ASRM

Yes. Some cycle-to-cycle variation is normal, so your AFC may not be exactly the same each month. Differences can also result from how clearly the follicles are visible and who performs the ultrasound.

Your physician will interpret the result alongside your AMH level, age, medical history, and previous test or treatment results. An unexpected AFC may sometimes be repeated in another cycle.

No. A lower AFC may suggest diminished ovarian reserve or a lower response to fertility medications, but it does not mean pregnancy is impossible.

Ovarian reserve testing is not a reliable standalone predictor of natural conception, IVF pregnancy, or live birth. Your age, egg quality, sperm health, reproductive anatomy, medical diagnosis, and treatment plan also matter.