Definitely a baby bump at Day 40!
Week Five
Amniotic fluid in the uterus increases in order to protect the pups around day 32 of gestation, and so you or your vet will no longer be able to detect the presence of puppies by palpating the abdomen.
From week five onwards, the puppies are much less susceptible to developmental issues and defects. The individual toes begin to form, and claws and whiskers start to grow. The foetuses also develop their male or female sexes during this time. The puppies will begin to develop their markings and the skin pigmentation that will eventually determine their colour and looks.
The fetuses develop their sex organs and begin to look like actual puppies. The leg buds lengthen and develop toes. Your dog's belly will begin to look noticeably swollen as the pups take up more space. With less room for full meals, it's time to begin serving smaller meals more frequently.
