u/Hot-Cold5074

I’ve been paying for pest treatment in my home for 1.5 years. They come out every other month and spray inside and outside. After the last treatment, I have seen 5 large cockroaches, 3 alive and 2 dead in various rooms in the house. I assume American cockroach. They aren’t the small kind that get in cabinets and food. Does this mean the treatment worked? Or that I need a follow up treatment? I don’t know why there is a sudden influx of roaches.