Progesterone is a natural chemical produced by womenâs bodies. Its function at every level is tied to the reproductive system. Progesterone comes from the empty egg follicle in womenâs bodies after ovulation. This process is known as: corpus luteum.
Your little boy dog isn't born with his testes in his scrotum, but they should get there before too long. If they don't, he'll require surgery. The age at which his balls actually drop varies from dog to dog, but it should occur by the age of 2 months. When a male puppy is born, his testicles are near his inguinal ring. By the time he's a week to 10 days old, they should descend into the scrotal pouch. An animal's body is too hot for sperm production, so the testicles must descend outside to become fertile.
if he was a large breed dog, i would say 2 years because that is when he can be officially OFA'd. Make sure that BOTH of his testicles drop-otherwise, you will have to get him neutered as cryptorchidism is a genitic defect and you don't want that passed on to his puppies! Also, check with the breeder you got him from.