Hello, my name is***** and I have over 20 years of experience as a veterinarian.
I am sorry to hear that your little one Cali has a reddish vaginal discharge and seems lethargic.
She is too young for a heat cycle
While puppies, especially females, can get urinary tract infections I would not expect her to be so lethargic. Pups with simple urinary tract infections are usually feeling pretty good, they are usually just urinating
more frequently, urinating small amounts, straining and may have more accidents.
Is it possible that she got into anything she should not have, like a toxin? Rodenticides that are anti-coagulants can cause internal bleeding
, including into the urinary tract and if they bleed enough they can become quite anemic, hypotensive and lethargic. Are her gums nice and pink in color or pale?
If you look at her abdomen do you see any evidence of bruising?
Whatever is going on with Cali an emergency veterinary visit today is best. She is still a baby and babies have no reserves and their immune systems aren't as strong as an adults.
If you absolutely cannot have her seen today then keep her very quiet and get lots of fluids into her. Small amounts of water or ice cubes given frequently are fine, as are small amounts of low salt beef or chicken
broth. You can give pedialyte to replace electrolytes too, if she isn't eating well.
If she isn't eating offer a bland diet mix of 1/3 boiled, lean hamburger (or boiled, white, skinless chicken), all fats and juices drained off the meat, mixed with 2/3 boiled, plain white rice.
Please let me know if you have any further questions.