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My dog's nipples are big & vulva swollen. Is she pregnant or in heat?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | unspayed | 11 months and 13 days old | 80 lbs

Hello I think my dog may be pregnant but can't tell. She hasn't gained much weight but she runs a lot and her nipples are starting to get bigger. Also her vagina is dark and swollen. Could you please give me any advice on weather she could be or not.

4 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on September 20th, 2017

Harley could be pregnant or she could be experiencing a false pregnancy (showing all the signs of being pregnant without having puppies). But these symptoms could also be due to her first heat. The only way to know for sure is to have her seen by a vet. The vet can diagnose what is causing her symptoms. I would have her seen by a vet tomorrow. I hope this helps!

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    Answered By Sara Farmer, DVM

    Veterinarian

    Published on February 9th, 2019

    Enlarged mammary glands and an enlarged vulva can occur during pregnancy but can also occur during a heat cycle. If she is not bearing weight on one of her legs and it seems higher than the other it could be a sign of an injury, or hip dysplasia that has cause luxation of the hip. I would recommend having her examined by your vet - they can certainly help determine whether or not she has an orthopedic issue and depending on how long it has been since the potential breeding they might be able to determine whether or not she is pregnant.

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on January 8th, 2018

    Given that Jewels escaped while she was in heat, it's certainly possible that she could be pregnant. Depending on when she was in heat in November, she could be far enough along in a pregnancy to have x-rays done to confirm she is pregnant and how many puppies she is carrying. It could also be she is having a false pregnancy. I would have her seen by a vet this week. The vet can diagnose if she's pregnant or not. Good luck, I hope this helps!

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    Answered By Jenna Beyer, DVM, MBA, cVMA

    Veterinarian, Certified Veterinary Acupuncturist

    Published on September 30th, 2018

    Mammary enlargement can be caused by pregnancy, false or hormonal pregnancy, exposure to human estrogen creams, masses or cysts, or lymphatic drainage issues, among others. It is a good idea to have Angie examined by a vet. The vet may do an x-ray or ultrasound to determine if she is pregnant.

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Related Questions

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Health & Wellbeing
My puppy was in heat about 2 months ago. She spotted some and her vagina was swollen but about a month ago it went back to normal. About 2-3 weeks ago I noticed her nipples sticking more out and today it’s pufft around her nipples. She is my only do
Hello and welcome to Boop by Petco. It is possible that Harley could be going through something called 'pseudo-pregnancy'. Dogs can develop mammary glands, produce milk, and will sometimes even start to nest and collect small stuffed animals to nurse. This is normal and will subside in a few weeks. However, it is recommended to get her spayed before her next heat so she doesn't have to go through that stress again. The other possible cause is something called a pyometra. This is an infected uterus and is life-threatening. If you notice any discharge from her vulva, if she is weak, not eating, drinking more, or acting abnormally at all, I would have her seen by your vet right away. Best of luck with Harley.
Updated on September 24th, 2025
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I have a 10mth old pocket bully came into 1st heat around jan.18th it is now feb.26th no bleeding vulva is still kinda swollen but all her nipples are red and swollen can she be pregnant..we do have a male on property but thought they where kept apar
If Nakkita was kept apart from the male, it may be she isn't pregnant. It takes time for the vulva to go down and the nipples do not return to their previous size after a dog goes into heat. Keep an eye on her for now, and maybe in a few weeks, take her into the vet for a check up. I hope this helps.
Updated on September 24th, 2025
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My dogs has been in heat for about a month and now she's acting super out of her normal and nipple swollen tummy tight and has always looked lean and does not anymore. Is that preg or just her first cycle?
A dog's heat last 3-4 weeks, and her nipples can become swollen during a heat. This should go down in in a few weeks. If your dog was around an intact male during her heat, it's certainly possible that she is pregnant. She also could be experiencing a false pregnancy. I would have her seen by a vet in another 3-4 weeks if she still has a swollen nipples and a tight belly. The vet then can diagnose if she is pregnant or not. Should she start showing any other signs such as vomiting, lethargy, anorexia, or diarrhea, I would have her seen by a vet right away.
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How can I tell if my dog got pregnant, her breast our swollen a lot and she is just was in heat ,not her genial area is still swollen and she stopped bleeding over a week ago.
If Cali stopped bleeding over a week ago, it's still too early to tell if she is pregnant or not. Her nipples and genital area should go down not long after a heat ends. Even if she was pregnant, it would still be too early for her nipples to enlarge in response to a pregnancy. You can wait at least another three weeks then take her into the vet for a blood test looking for the hormone relaxin. This will be present in her blood if she is pregnant. You can wait six weeks instead and then take her into the vet for x-rays or an ultrasound to see if she is pregnant or not. This will also tell you how many puppies she is carrying. Best of luck.
Updated on September 24th, 2025
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Okay my dog is a female pitbull is about a year old she just went through her first heat but I think she might have gotten pregnant before she is showing major signs of labor vaginal area is swollen and pushing out. Her nipples Pinker than they were
Thank you for submitting your question regarding Macy. Her mammary chain does not show any enlargement or engorgement with milk. This makes it less likely that she is pregnant. I agree though that her vulva appears swollen. Depending on how long ago her heat cycle was it can mean several things. If the cycle was recent, the swelling may not have had time to reduce yet. If her cycle was months ago, she could be starting her next cycle. If you have seen tissue protruding from the vuvla, then a vaginal prolapse could be the cause. Finally, she could be experiencing a false pregnancy. She will likely need to see her veterinarian to differentiate between these causes and to determine why she is exhibiting the behavioral changes. I hope this information helps!
Updated on September 24th, 2025
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My 8 month old puppy has a swollen vagina and nipples. Ive never had a dog so i dont know what is happening. Is she in heat?
With that degree of swelling she is very much in heat and must be kept isolated from all other dogs (if she has been out in the last few weeks it is possible she may have been mated already). I would contact your vet to discuss options if you do not want pups and there is any possibility she may have been mated
Updated on September 24th, 2025
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My dog has milk coming from her nipples. Does this mean that she is pregnant? If not, what does it mean? She isn't due to be in heat for a few months.
She may be having a false pregnancy. If she had contact with a male while she was in heat, she could be pregnant. She could also have a hormonal problem or a mammary tumor. It would be best to take her to a veterinarian for an exam. The vet can also tell you whether she is pregnant. Unfortunately this is impossible without a hands-on exam.
Updated on September 24th, 2025
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I have noticed today as I was giving my dog a belly rub that she is lactating from one nipple and they have gone rather large and swollen looking she has had only two seasons and has NOT been mounted by another dog as she is only about 17 months only
It is possible that Bella is heading into another heat. While dogs typically go into heat every six months, they can go into heat sooner, and it's a possibility if her last heat was a few months ago. She could also be experiencing a false pregnancy if there's no chance she would be pregnant. I would have her seen by a vet in the morning for a definitive diagnosis as to why she is experiencing these symptoms.
Updated on September 24th, 2025
Petco Pet Education Center
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My pup her her first season about 1/2 months ago recently iv notice her back 4 nipples are saggy like she’s had a litter what does this mean? She’s never been near male dog
Hi there. When your dog has experienced heat cycles, their bodies will react differently from dog to dog. Much like puberty in humans, with the beginnings of such hormonal fluxes, breast enlargement as well as vulvar are common and may be permanent. Certain types of infections, called pyometras, are also a possibility-if your pup is lethargic, not eating or drinking, or has purulent discharge she should see a vet immediately.
Updated on September 24th, 2025
Petco Pet Education Center
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Ok so my dog is now over a year old and she went into heat about a month ago, recently I have noticed that her nipples look enlarged and are kinda a dark pink/red color. Our Male may have gotten her while we were not home. Now he seems to want nothi
It is quite possible she could be pregnant, or may be suffering a false pregnancy. An ultrasound exam by your vet is recommended to see what is going on so you can start and prepare for puppies if they are on the way - you will need to arrange to segregate the male from the nursing mother if you are going ahead with the pups
Updated on September 24th, 2025

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