What should a 39 year old 5 foot 3 inch female weigh?

I would guess that a woman of your height and age should weigh anywhere from 105-125. This is just my educated guess by looking up on the online BMI chart (http://kidshealth.org/teen/food_fitness/dieting/bmi.html) but you should check for yourself, and find out if you are at a healthy weight.