How would a female omega look like?

UHM IDK WHY BUT IVE BEEN WONDERIND WHAT- Since erm omega's have womb, but women already have that, so the only thing added to them are heats? Also, i havent really seen a manga which includes female omega's and all, but ofc it might be impossible to not have a female omega since It cant be possible for a male alpha and female beta to be togethrt(in their world logic..)