When do female chihuahuas stop giving off the scent that attracts male chihuahuas?

Female Chihuahuas typically stop giving off the scent that attracts male chihuahuas after they complete their heat cycle, which lasts about 2 to 3 weeks. This cycle occurs approximately every six months, and the most attractive scent is usually strongest during the estrus phase, when they are fertile. Once the heat cycle ends, the scent diminishes, and they will not attract males until their next heat cycle.