Interesting...

Found the following definition in the Urban Dictionary:

WGTOW
Women/Woman going their own way. WGTOW is a demonstration of a woman's individual sovereignty and autonomy. It is the concept of the moral right of self-ownership of a woman, along with her natural right to bodily integrity, and to have sole control and direction of her life goals and decisions.

It is a way of stating that, as a woman I will not surrender my will to the social expectations of others or society; I can express my own natural individuality and femininity with integrity, without needing the approval of others.