Average Time is Just Over Two Months
The average time that a dog is pregnant is 63 days. The range for dogs is between 56 and 66 days and of course this depends on the day of ovulation, which may not be the same day that the actually impregnation took place. Most dogs have the same experience during gestation and it does not matter if the dog is a tiny Chihuahua or a large Newfoundland.
Behavior Will Show How Long Are Dogs Pregnant
It is not very easy to tell if your dog is pregnant right away, especially since your dog will not be able to tell you how she feels. You might notice a little weight gain and possibly even some morning sickness, but that is about it. In the early part of the pregnancy, your dog might not eat much and might seem tired. If you do notice that your dog is vomiting a little, it is a good idea to give your dog little meals rather than big ones through the day. Fortunately, morning sickness in dogs only lasts a few days, especially since pregnancy is so short.
Ultrasounds or Palpation
If you think that your dog might be pregnant, you should take your dog to the vet who will do an ultrasound to determine if your dog really is pregnant. Most vets will want to wait until your dog is at least 21 days into the pregnancy, because it is easier to see the little puppies in the uterus. If you prefer to not do an ultrasound, your vet should be able to palpate the abdomen to detect pregnancy. But, this test is best performed at 28 days or later.
Delicate Embryo and Placenta
Pet owners who have never dealt with a pregnant dog should avoid trying to palpate their dog’s belly to determine pregnancy. At 28 days, an average dog has embryos that are close to the size of walnuts. A dog’s belly has lumpy things that can be easily confused as embryos, which can make it difficult for an amateur to detect whether or not your dog is pregnant. The biggest danger in palpating a dog on your own is that each embryo has a placenta and those placentas are very delicate and can easily be ruptured. The time span for palpating the embryos is about a week, because at 35 days, the embryos are wrapped in a fluid and cannot be felt.
Another way to tell if your dog is pregnant is with a blood test but it will not tell you how long are dogs pregnant. The blood test will check for a hormone called relaxin, but the relaxin cannot be detected until 28 to 30 days into the pregnancy.