Pregnancy diagnosis should be carried out on every cow to confirm that she is pregnant. You are really looking for the animals that are not pregnant so you can get these back in calf as soon as possible. With manual PD, a highly skilled individual can confirm pregnancy as early as 30 days. For less skilled vets and technicians, pregnancy checks are carried out at two or three months after the last service. This video is for those who carry out manual pregnancy diagnosis and do not have access to ultrasound scanners. It describes how to carry out a PD or pregnancy check and the changes to the uterus and baby calf during pregnancy.