Both teams have done it vastly different fashion, though, with Arsenal edging out West Ham in a 4-3 thriller at their home ground in Borehamwood. After a hat-trick from Danielle van de Donk, a 75th minute strike from Scotland international Kim Little proved decisive.
Full-time at Meadow Park: #AWFC 4-3 @westhamunited— Arsenal Women (@ArsenalWFC) September 23, 2018
Despite falling behind twice, we’ve maintained our perfect start to the season @DanielleDonk is our hat-trick hero #WeAreTheArsenal pic.twitter.com/PUv87Zv7nm
The Gunners have now scored 16 goals in just three league games so far this season.
Birmingham, on the other hand, have won 1-0 each time, managing an impressive away win at Reading this weekend courtesy of a solitary early goal from Meaghan Sargeant.
Reigning champions Chelsea continue to struggle and are remarkably yet to score or concede a single goal after a third consecutive 0-0 draw. This time it was Everton who frustrated Emma Hayes' misfiring team during a tense game on Merseyside - a first point season for the Toffees.
Manchester City also drew, but only after a late two-goal comeback against Bristol City. Bristol had found themselves 2-0 up shortly after half-time - goals from Danique Kerkdijk and Juliette Kemppi, the latter after dispossessing City goalkeeper Karen Bardsley 30 yards from goal.
Nikita Parris scored a penalty with seven minutes remaining before City and England captain Steph Houghton, coming off a very difficult week in which husband Stephen Darby announced his retirement following a motor neurone disease diagnosis, made it 2-2 in the last minute.
Manager-less Liverpool earned their first win of the season after beating Brighton 1-0 on the road through a late strike from substitute Rinsola Babajide.
In the second tier Women's Championship, Manchester United continued their charge towards immediate promotion in some style. After 12-0 and 3-0 wins in their first two league games, it was another goal fest on Sunday as United thrashed London Bees 5-0.
Lewes are the only other team with a 100% winning record, beating Leicester 4-3. Millwall and Crystal Palace drew 1-1, while Durham and Charlton tied at 2-2. Tottenham were due to host Sheffield United but a waterlogged pitch resulted in the game being postponed.