NEW YORK — Procter & Gamble is canceling an on-field breast cancer awareness promotion it had been planning with the National Football League, the latest sponsor to respond to the NFL’s growing problems.The consumer products maker is the latest major sponsor, following PepsiCo and Anheuser-Busch, to show concern over the NFL’s handling of domestic abuse allegations against several players. The move came as NFL commissioner Roger Goodell held a press conference to say that the NFL needs to change its policies and will implement new personal conduct policies sometime before the Super Bowl early next year.Women make up 35 percent of the average audience of 17.4 million during a regular season NFL game, and the NFL has made it a point to reach out to women in recent years. The league has made Breast Cancer Awareness month in October a particular focus.