The time interval of a gestation is called the gestation period. In obstetrics, gestational age refers to the time since the onset of the last menses, which on average is fertilization age plus two weeks.

Mar 19, 2024 · During this trimester, the fertilized egg will change from a small grouping of cells to a fetus that begins to have human features. The first trimester is exciting, but also when most people …

Apr 10, 2025 · Follow your baby's development week by week, from conception to labor, in these amazingly detailed, doctor-reviewed images. At the start of this week, you ovulate. Your egg is …

Mar 18, 2025 · Fetal development starts soon after conception. Find out how your baby grows and develops during the first trimester. You're pregnant. Congratulations! As your pregnancy goes on, …

Human gestation Twenty-four hours before fertilization, the egg has finished meiosis and become a mature oocyte. When fertilized (at conception), the egg, now known as a zygote, travels through the …

Jul 11, 2023 · All mammals, including humans, go through a period of gestation that lasts from conception to birth. During this time, your body goes through many changes and may be more …

gestation, in mammals, the time between conception and birth, during which the embryo or fetus is developing in the uterus. This definition raises occasional difficulties because in some species (e.g., …

Follow your baby’s journey week-by-week gestation—from conception to birth. CWC America guides you with every stage of pregnancy.

When fertilized (at conception) the egg becomes known as a zygote. The zygote travels through the oviduct to the uterus (Figure 1). The developing embryo must implant into the wall of the uterus …

Aug 23, 2023 · Gestation is the period of time between conception and birth when a baby grows and develops inside the mother's womb. Because it's impossible to know exactly when conception …