Physiology
Fertilisation and early pregnancy
Updated: 3 October 2026
Understand through movement
Fertilization
Nucleus Medical Media · Video in English
Subject illustration · OpenStax / Rice University · CC BY 4.0
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01The role
Meeting of sperm and egg is one step, not a guarantee of an ongoing pregnancy.
02The mechanism
Fertilisation usually occurs in a fallopian tube; the embryo then travels towards the uterus.
03Coordination
Implantation into the uterine lining is distinct from fertilisation and occurs later.
04Key point
Difficulty conceiving concerns the couple; male and female factors are assessed together.
Medical references
This general information does not replace a consultation. Tests and treatments are selected for each individual; they are not a routine checklist.
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