Remembering that in most places the force used to defend yourself must be reasonable or at least proportional to be legal.I'm asking if you would use a certain level of force, against and attack from an unarmed female. I am certainly not asking if you would take general action to protect yourself. I'm asking if you would take your fist and break her nose. Or drive your knee into her chest, or kick her knee cap, smash her jaw with your elbow or whatever.
Your response must always be enough for you to escape/prevent injury but not turn into a major assault regardless of the gender of the attacker. Gender has nothing to do with the situation.