I would suggest taking your puppy to your veterinarian, along with a sample of the bloody feces. In a puppy, I would suspect hookworms or roundworms, but your veterinarian will need to do a physical examination to see what is happening.
Yes Yes Yes
vitamins
When the puppies are 7-10 weeks or less.
Puppies already know how to poop. Edit: The original answer is incorrect. Puppies need stimulation to poop and urinate when they are first born. Typically the mother will lick the puppy to get it to urinate or poop, but if the owner needs to assist then you can use a warm paper towel on their stomach and anus to get them to use the bathroom. This is very important until they can do it on their own, which is about 2 weeks after birth typically.
The Mother licks their bunghole, if you are bottle feeding puppies better get a dental dam.
Nurse, pee, poop, and sleep.
cause blood
Poop was invented so we can reproduce. Without our reproduction system, we would be all stacked with poop inside our body. Then we would have no blood. Without any blood, we wouldn't live, cause our body needs to circulate with out blood.
The first stool/poop a newborn pup/human takes is a very sticky greenish black and is called meconium.
anal seepage
Yes
Yes you see there is alot of blood in the her belly and it is norml to poop bloody.