Andy Butler’s side needed a high-scoring victory to ensure their challenge for the title remained meaningful rather than just mathematical.
Quickfire goals from Jasmine Saxton and Sophie Scargill after 25 minutes laid a platform.
But Bedworth replied almost straight away from the penalty spot and frustrated the hosts.
Saxton’s second just past the hour mark restored the two-goal advantage and took her season’s tally to 20 goals in all competitions.
But the Belles had to survive a nervy ending after Bedworth scored again on 85 minutes.
Belles will need to win at Long Eaton United on Sunday and then at Solihull Moors by an aggregate margin of eight goals to have any chance of winning the title.
Boldmere, who are six points clear, only need a point from their final game against Leafield Athletic to be crowned champions.