Ovary - To produce the egg (ovum). To produce the hormones oestrogen and progesterone.

oviduct (fallopian tube): It is the site of fertilization. It carry egg (ovum) or fertilized ovum (zygote) to the uterus.

Uterus - It is the site of development of embryo. It is made up of muscle tissue. It protects and nourishes the embryo.
Embryo nourished inside mother by placenta. Placenta is a vital organ formed by chorionic villi and uterine lining. This is the connection between the mother and embryo. This is embryo's organ of respiration, nourishment, and excretion. Blood barrier between mother and embryo diffuse across the membrane. Blood does not mix.