Spontaneous conception is the
conception and birth of a subsequent child, after the birth of a child conceived through
in vitro fertilisation or other forms of
assisted reproductive technology
Assisted reproductive technology (ART) includes medical procedures used primarily to address infertility. This subject involves procedures such as in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), cryopreservation of gametes o ...
. There is an overall 18% chance of spontaneous conception after an in vitro fertilization (IVF) treatment, but that chance rose to 37% among younger women (less than 27 years). The likelihood also depends on the
sperm
Sperm is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger, female reproductive cell and a smaller, male one). Animals produce motile sperm with a tail known as a flagellum, whi ...
performance of the man and the egg count of the woman.
References
{{DEFAULTSORT:Spontaneous Conception
Infertility
Gynaecology
Human pregnancy