The answer to 'how did stink bug get in my house' is that stink bugs often find their way indoors through cracks and crevices in a home's exterior. These pests are looking for warm places to overwinter and can sneak in through gaps around windows, doors, vents, and other entry points.
Stink bugs are attracted to light and may be drawn inside by porch lights or other outdoor lighting. They can also accidentally get carried inside on firewood, packages, or other items brought into the home. Once inside, stink bugs can become a nuisance, emitting their distinctive foul odor when disturbed.