What Happens During the First 24 Hours of Pregnancy?

Ajouté : 2026-06-07

[00:00:00]The first 24 hours of pregnancy begin when a sperm successfully fertilizes an egg. During this time, the DNA from both parents combines to create a unique genetic blueprint. A single cell called a zygote is formed and contains all the instructions needed to build a baby. The fertilized egg immediately starts preparing for its first cell divisions.

[00:00:21]This tiny cell then begins its journey through the fallopian tube toward the uterus.