The embryo is an organism that develops following fertilization of an ovum by a spermatozoon, over a period of around 10 weeks, to become a foetus. This is the first stage of pregnancy after fertilization.
The embryo is an organism that develops following fertilization of an ovum by a spermatozoon, over a period of around 10 weeks, to become a foetus. This is the first stage of pregnancy after fertilization.