A–Z Glossary

Breech presentation

Breech presentation occurs when the fetus is not positioned head-down, such as with the buttocks or feet oriented toward the birth canal.

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Delivery types based on baby position including breech

Delivery types based on baby position including breech

Why baby position changes delivery planning In obstetrics, “presentation” describes the fetal part that enters the pelvis first, while “position” describes how that presenting part is oriented in relation to the mother’s pelvis. These details matter because birth is not only about dilation; it also depends on fit, flexion, rotation, and the baby’s ability to […]

When natural birth may not be possible

When natural birth may not be possible

What "not possible" usually means In obstetrics, saying that natural birth may not be possible usually means that a planned low-intervention vaginal birth no longer appears to be the safest or most realistic route. This can be known before labor begins, discovered during antenatal assessment, or become clear only after hours of labor. The decision […]

Medical criteria for home birth safety

Medical criteria for home birth safety

Core eligibility profile The most consistent message across professional guidance is that planned home birth safety depends on strict selection. The practical test is planned home birth eligibility: the pregnancy should look like the low-risk group used in published guidance, not simply like a pregnancy that feels uncomplicated from day to day. That profile generally […]

How pregnancy changes month by month

How pregnancy changes month by month

Understanding pregnancy timing: weeks, trimesters, and months Pregnancy is usually dated from the first day of the last menstrual period, even though conception typically occurs about two weeks later in a 28-day cycle. A full-term pregnancy is commonly described as about 40 weeks. Clinicians often use trimesters because they align with major developmental and medical […]