Now that we are finished with the series of articles on “Fertility/Infertility” in our companion animals, we can now turn the topic of pregnancy. After the egg and sperm cell meet and fertilization takes place, this little entity (called a Zygote) starts dividing itself and developing into an embryo which will grow into a foetus and then into a baby (pup, kitten, piglet, etc) in the mother’s womb,
