
Yes, a bitch can (and many are allowed to :( ) become pregnant at her first season.
It is possible to keep an entire bitch and dog in the same house during seasons, but people who do it say that it's a nightmare for everybody. The dog often howls continually and refuses to eat for several days, and allpeople in the house must make sure that the two are
never in the same room together. Most people kennel one of them for the duration.
Generally, depending on breed, the ideal age for a bitch's first litter is after her second birthday (usually her 4th season).
Hope this helps.
:)