The development od the embryo and foetus.
It starts of with the fertilization between the egg and sperm. this happens in the fallopian tube. his stage it is call a Zygote.
At 3 weeks the Embyo is about 3mm long, the heart has started beating and it is developing rapidally.
At 8 weeks the embryo is now called a feotus it is about 4cm ling and its main organs have developed.
At week 10 the…