Many shelters offer formal trial or foster-to-adopt windows. If not, give yourself a realistic time frame to assess adjustment, behavior, and fit with household routines. A quick week is often too short; four to eight weeks is a reasonable period to observe bonding, housetraining, and social dynamics.
What to evaluate during the trial:
Use the trial to explore veterinary needs, work out daily logistics, and consult trainers if behavior questions arise. Communicate clearly with the shelter about return policies and support; many rescues will accept returns if things don’t work out, and this safety net is helpful for both owner and dog.