all dogs have a gestation period of, on average, 63 days.
Yes, as long as the chihuahua is "in heat" and they get "hung" (which you will know), the pug can get the chihuahua pregnant.
63 days
No.
I don't see how it concerns the chihuahua
as soon as she comes back in heat.....usually bout 44 years
there belly and pups.
They have a 90 day gestation period.
It's life, when a male mates with a female the female gets pregnant. Remember unless you don't want an unspayed female to get pregnant, keep her away from the male! taking care of an pregnant chihuahua is very hard... And expensive.
Its not hard at all. When in heat they should be able to get pregnant. Sometimes on their first time they don't get pregnant. But that's rare.
It really doesn't matter as long as the dog is as delicate as the chihuahua.
As long as you like!
It all depends on the male dog.