Fetal development
Fetal (U.S. English; "Foetal" UK English) development is the process in which a fetus (U.S. English; "Foetus" UK English) develops during gestation, from the times of conception until birth.
Miscarriage
The term miscarriage is used to describe the loss of a baby before 20 weeks of pregnancy and the term stillbirth is used to describe the loss of a baby after 20 weeks of pregnancy.
The Process Of Fertilisation
Fertilisation or fertilization (also known as conception, fecundation and syngamy) is fusion of gametes to form a new organism of the same species.