Unless there has been a mistake in the sexing of your rabbits it is quite likely a phantom pregnancy.
Phantom pregnancies and other hormonal activities can be prevented in large part by spaying both of your female rabbits!
The main sign of phantom pregnancy is nesting. The bunny will start to pluck out the hair on her chest and tummy to build the nest with. In the case of some rabbits they will pull hair out of a bonded mate to nest build also. You will often see a nesting bunny frantically running around with a mouth full of hay to take to her nest. If you bunny is nesting without reason (i.e. she has not been bred, she is spayed, she has not had any contact with a male) then you can pretty much be sure it is a phantom pregnancy. A phantom or false pregnancy can be detected in several ways. If you have not bred your doe you KNOW it is a false pregnancy. If she goes over 32 days it is a false pregnancy. You can palpate at 15 days and if you do not feel babies but she insists on nesting you will know it is a false or phantom pregnancy. A doe having a false pregnancy will nest just like a doe that is pregnant. I have witnessed some that tend to go overboard nearly stripping themselves naked because no babies come. The doe that you determine to be having a phantom or false pregnancy should be bred immediately. There should be no 'bonded mate' for a doe with phantom pregnancy every rabbit should have it's own cage.
If your rat is nesting and starting to get nipples, she may be pregnant, but it is possible that she is having a 'phantom pregnancy' where a rat show the signs of being pregnant but doesn't give birth to offspring.
The behavior you describe here is typical of a Phantom Pregnancy. When a female rabbit is unspayed this is not an unusual occurrence. The best thing you can do for her is to have her spayed. This nesting behavior and hormonal impulse is actually quite stressful for her (although often amusing to watch a bunny running around with her mouth full of hay) and she would be far happier when spayed. It is also worth remembering that most unspayed and unmated female rabbits died of uterine cancer at between 3-5 years of age, spaying can increase life to 10-12 years.
Yes
There could be one of two reasons.1. She is PregnantIf she is pregnant you will see babies within a few days.or2. She thinks she is pregnant (a false/phantom pregnancy)If this is the case you need to get her spayed ASAP. This will stop the behaviour. If she is already spayed she will most likely stop building and move onto some new project in a few days!
The only difference between a phantom pregnancy and a real pregnancy is that with a phantom pregnancy you are not actually carrying a baby and you will usually have a period and a negative pregnancy test. You will have the same symptoms as a regular pregnancy and they can last at least as long as 7 months.Scroll down to related links and look at "False pregnancy - Wikipedia"
The main sign of phantom pregnancy is nesting. The bunny will start to pluck out the hair on her chest and tummy to build the nest with. In the case of some rabbits they will pull hair out of a bonded mate to nest build also. You will often see a nesting bunny frantically running around with a mouth full of hay to take to her nest. If you bunny is nesting without reason (i.e. she has not been bred, she is spayed, she has not had any contact with a male) then you can pretty much be sure it is a phantom pregnancy. A phantom or false pregnancy can be detected in several ways. If you have not bred your doe you KNOW it is a false pregnancy. If she goes over 32 days it is a false pregnancy. You can palpate at 15 days and if you do not feel babies but she insists on nesting you will know it is a false or phantom pregnancy. A doe having a false pregnancy will nest just like a doe that is pregnant. I have witnessed some that tend to go overboard nearly stripping themselves naked because no babies come. The doe that you determine to be having a phantom or false pregnancy should be bred immediately. There should be no 'bonded mate' for a doe with phantom pregnancy every rabbit should have it's own cage.
If your rat is nesting and starting to get nipples, she may be pregnant, but it is possible that she is having a 'phantom pregnancy' where a rat show the signs of being pregnant but doesn't give birth to offspring.
yes because to have the phantom pregnancy your body secretes pregnancy hormones which is what pregnancy tests look for
Yes. In a phantom pregnancy, the body is tricked into feeling like it is pregnant. Consequently the same hormones present in a real pregnancy will be present in the body of someone who is undergoing a phantom pregnancy, and these hormones are what a pregnancy test detects.
A horse who is experiencing a phantom pregnancy will have symptoms of an actual pregnancy. These symptoms include the horse being tired with a puffed up stomach.
The behavior you describe here is typical of a Phantom Pregnancy. When a female rabbit is unspayed this is not an unusual occurrence. The best thing you can do for her is to have her spayed. This nesting behavior and hormonal impulse is actually quite stressful for her (although often amusing to watch a bunny running around with her mouth full of hay) and she would be far happier when spayed. It is also worth remembering that most unspayed and unmated female rabbits died of uterine cancer at between 3-5 years of age, spaying can increase life to 10-12 years.
Yes
no... that kind of pregnancy is all in your head
Yes.
Yes.
If you meant 'imaginary' pregnancy - it's also known as a 'phantom pregnancy'