Fertilisation

Fertilisation is the first step in conception. It is the process by which a sperm joins with the egg and forms the diploid zygote. This usually occurs within the fallopian tube and takes multiple steps. The sperm has about 24 to 72 hours to travel from the vagina to the fallopian tube to meet and merge with the egg. At this merge, the sex of the embryo is determined (Hill, 2020).