Holders Arsenal Ladies will travel to fellow top-flight side Reading in the first round of the Women's Continental Cup.
The cup involves all 19 sides from Women's Super League One and Two.
The six lowest-ranked sides from 2015 were drawn into a preliminary round.
All eight of last season's WSL 1 sides move straight to the first round, and were deliberately drawn away from home.
Preliminary Round draw:
Sheffield v Durham
Oxford United v Millwall Lionesses
Watford v London Bees
First Round draw
Doncaster Rovers Belles v Sunderland
Oxford United or Millwall Lionesses v Birmingham City
Watford or London Bees v Chelsea
Sheffield or Durham v Bristol City
The preliminary round will take place over the weekend of Saturday 7 May and the first round is scheduled for Saturday 2 July and Sunday 3 July.