Sophia O Rourke came close in the opening two minutes of the game as the Rooks made a bright start against Southampton at the Dripping Pan.
A poor challenge on Megan Mackey in the area gifted the hosts a penalty but Umotong was denied from the spot in the 35th minute.
However, the visitors eventually broke the deadlock when Georgie Freeland fired home from a free-kick shot six minutes from half-time.
After the restart, Georgia Timms headed a corner onto Umotong s path, offering the latter a chance to make up for her earlier miss, and she made no mistake with her equalising header 17 minutes into the second half.
Nigeria striker Umotong on target for Lewes against Southampton
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#FAWC: Charlton Women off the bottom with late leveller against Liverpool
#FAWC: Charlton Women off the bottom with late leveller against Liverpool Liverpool’s Rhiannon Roberts in action against Charlton Athletic. (PA Images)
Charlton Athletic netted a late penalty to hold Liverpool and move off the bottom of The FA Women’s Championship.
Sunday 7 February
Blackburn Rovers 2-2 Crystal Palace
Charlton Athletic 2-2 Liverpool
Late penalty lifts Charlton off the bottom
Charlton Athletic moved off the bottom of the table when holding Liverpool 2-2 with a late penalty, as the fourth-placed Reds sit ten points behind the leading pair.
Charley Clifford’s stoppage-time penalty rescued a point for Charlton Athletic in an engaging encounter with Liverpool at a snowy Hayes Lane.