The fertilized egg stays in the fallopian tube for about 3 to 4 days. But within 24 hours of being fertilized, it starts dividing fast into many cells. It keeps dividing as it moves slowly through ...

If the egg is fertilized, the corpus luteum remains intact and continues to release progesterone for the first 12 weeks of pregnancy. In these 12 weeks, the placenta develops along with the fetus ...

releasing eggs, which can potentially be fertilized by sperm producing female sex hormones, such as progesterone and estrogen providing an environment for a fertilized egg to develop during ...