Pregnancy: Conception – Maternity – Trimester
Irregular menstrual cycles and fertility

Irregular menstrual cycles and fertility

What counts as an irregular menstrual cycle? A menstrual cycle is counted from the first day of one period to the first day of the next. Many adults have cycles somewhere around 24 to 38 days, but “normal” is not the same as identical from month to month. Some variation is expected, particularly after stopping […]

Age-related egg quality decline

Age-related egg quality decline

What egg quality means Egg quality describes the developmental competence of an oocyte. A high-quality egg is more likely to mature properly, complete meiosis with the correct chromosome number, be fertilized, and support early embryonic cell division. In practical terms, egg quality influences the chance of conception, embryo development, implantation, and ongoing pregnancy. The most […]

Egg quality and fertility

Egg quality and fertility

What clinicians mean by egg quality Egg quality, or oocyte competence, describes whether an egg has the cellular and genetic capacity to complete maturation, be fertilized, divide normally as an embryo, implant, and contribute to an ongoing pregnancy. It is not simply about whether ovulation occurs. A person may ovulate regularly and still have eggs […]

Low ovarian reserve explained

Low ovarian reserve explained

What does low ovarian reserve mean? Ovarian reserve refers to the remaining supply of oocytes, or eggs, within the ovaries. Everyone with ovaries is born with a finite number of immature eggs. This number declines throughout life, including before puberty, and the decline accelerates as reproductive age advances. Low ovarian reserve means the number of […]

Ovarian reserve and fertility

Ovarian reserve and fertility

What ovarian reserve means Ovarian reserve describes the remaining pool of eggs in the ovaries and the functional activity of the follicles that contain them. A person is born with all the oocytes they will ever have. The number declines steadily from fetal life onward through a natural process called atresia. By reproductive age, only […]

Blocked fallopian tubes: causes, symptoms, and how tubal damage prevents pregnancy

Blocked fallopian tubes: causes, symptoms, and how tubal damage prevents pregnancy

Why the fallopian tubes matter for conception The fallopian tubes are not passive pipes. They are highly specialized reproductive organs that coordinate egg pickup, sperm transport, fertilization, early embryo support, and embryo movement into the uterus. After ovulation, the fimbriae, which are delicate finger-like projections at the ovarian end of the tube, help capture the […]

How endometriosis affects conception

How endometriosis affects conception

Endometriosis and fertility: a variable relationship Endometriosis-associated infertility is not a single pathway. It is better understood as a spectrum of possible disruptions that may occur at several points in conception: ovarian follicle development, ovulation, egg pickup by the fallopian tube, sperm movement and function, fertilization, embryo transport, implantation, and early placental signaling. Some people […]

Endometriosis and infertility

Endometriosis and infertility

Understanding endometriosis in the context of fertility Endometriosis is estrogen-responsive and inflammatory. The ectopic endometrial-like lesions can bleed, scar, and trigger immune activity, leading to pelvic adhesions and distorted anatomy. When adhesions tether the ovaries, fallopian tubes, uterus, or bowel, the egg and sperm may have more difficulty meeting. If a fallopian tube is blocked […]

How PCOS affects ovulation

How PCOS affects ovulation

PCOS and ovulation: the core connection Ovulation is the release of a mature egg from the ovary. In a typical menstrual cycle, several ovarian follicles begin to grow under the influence of follicle-stimulating hormone, or FSH. Usually, one follicle becomes dominant, produces rising estrogen, and eventually responds to a luteinizing hormone, or LH, surge. The […]

PCOS and fertility explained

PCOS and fertility explained

What PCOS is, and why it matters for fertility PCOS is a hormonal and metabolic condition characterized by a variable combination of ovulatory dysfunction, clinical or biochemical hyperandrogenism, and polycystic ovarian morphology on ultrasound. Not everyone has all features, and the name can be misleading: ovarian cysts are not required in every diagnostic framework, and […]