I believe your answer is going to be 2 Weeks. Hope this helps!
It is mainly based on the type of tests that a person will conduct between whole milk and skim milk. Changes and be expected when you boil one milk with the other and compare both milks after it has been boiled. Example one may have bubbles and the other doesn't mainly whole milk theirs has a thick
cream once it's been boiled that most likely the skim milk wont have.
Every month your body preps its self to house a baby, if an egg isn't fertilized then the lining of the uterus is shed, which is what ur period is. This is your body's way of maintaining homeostasis