My dog mated with a 5-month-old puppy. Is she pregnant? Belly hard.

It is quite possible she is in pup - males can be fertile for 4-6weeks after castration so if they were not separated, or other males would have had access to her when she was in heat she may well be in pregnant. I recommend you schedule an ultrasound exam with your vet to confirm pregnancy and guide appropriate management. You will need to arrange a separate area for her and pups away from other dogs for at least 6weeks if she is rearing pups

It could be possible that Cheeky is pregnant if she mated with your male dog when she was in heat, but without seeing her in person, there's no way I can say for certain. I would take her into a vet today who can do x-rays to confirm if she is pregnant or not. Best of luck, I hope this helps.

She may not be pregnant, the date may be incorrect or she may not have a large litter. Ideally, she should be physically examined by your veterinarian. Pregnancy can be confirmed via palpation, blood test or abdominal x-ray or ultrasound. The imaging may diagnose any other underlying condition as well.

I recommend you have Molly seen by your vet to make sure she is okay. Dogs usually go into heat around 6 months of age, but can also go into heat earlier, and often the first heat is not noticeable, as there is not always a lot of visible discharge. She may be pregnant, so speak to your vet about what your options are regarding that as well, and if you want to keep the puppies to term. I recommend having Molly spayed and your other dog neutered to help reduce the risk of unwanted pregnancies, certain undesirable behaviours, and certain diseases. See the link below for more information: https://www.avma.org/public/PetCare/Pages/spay-neuter.aspx

Basically at this stage you should see weight gain, increased appetite and her nipples should begin to get larger at this point. if you do not see any of those it is very likely that she is not pregnant.

Unfortunately there's no way to tell for sure at home. I would certainly say that Zaria appears to be either obese or pregnant, and given that she has mammary gland enlargement as well as being overweight I'd bet on pregnancy, especially if she's been around an intact male. But the only way to tell for sure is to take her in to see her vet. Very rarely we can palpate (feel) puppies but the best tool is x-ray - an x-ray taken of her abdomen at this point would likely for sure reveal puppies if she's pregnant.

Without seeing Nagai in person, I can't say for certain if this is caused by pregnancy or a disease, but it is certainly possible that she is pregnant. The only way to know for sure if Nagai is pregnant is to have her seen by a vet for blood tests, x-rays, and ultrasound. These tests will confirm a pregnancy, and give an idea of how far along she is in her pregnancy.