It is simply a bad dog behavior.
A female pug tends to prefer a male than another female
A male can smell a female pug in estress for 5 miles. The animal kingdom is based on reproduction. It is best to get the female spade and the male fixed. The male pug will NEVER calm down while the female is in estress
Yes, as long as the chihuahua is "in heat" and they get "hung" (which you will know), the pug can get the chihuahua pregnant.
it doesn't make a difference but if a pug is pregnant the tail will be thicker and will not curl like i usually dose a perfect pug tail has to curls
It really depends on the size of the puppy. Around 14.5 ounces.
A male Pug dog is usually bigger and heavier. A male (Dog) Pug's average weight is around 6 to 10 kg(13-20lb)and they stand 30-36cm (12-14") high. A female (Bitch)Pug's average weight is about 6-8 kg (13-18lb)and height 25-30cm (10-12"). They can become much heavier than this if overfed.
I have 2 male and female.It kinda varies..The male is the size of a reg. pekingese the female is smaller.
If it's a recent litter of pups, it is perfectly normal.
You probably cant and probably shouldn't. If you are trying to mate a male great Dane with a female pug, it would probably get killed by the great Danes weight. If you are trying the reverse, the male pug may not be able to successfully mate with the female Dane.
Pugs are a breed of dog. They reproduce sexually.
drooling and excessive licking could indicate a need to vomit. You need to get your pug to the VET ASAP.