Illustration of human fertilisation showing sperm approaching an oocyte, corona radiata and zona pellucida.
Articles, IVF & Fertility Basics

How Human Fertilisation Normally Happens: A Beginner’s Guide

Human fertilisation is more than “sperm meets egg.” Follow the normal sequence from ovulation and sperm transport through capacitation, membrane fusion, oocyte activation, pronuclear formation and the first embryonic division.