Menstruation on this diet
My first period on this diet was a week late, and hurt like a mother. The good thing is that you get a special "B Complex" injection that really helps with bloating, cramping, and pain.
Don't freak out if your weight is off before/during menstruation. It is normal to 2-5 pounds during your cycle. Let the nurses know when your period starts.
Also, blood might screw with ketones, so if you're out of ketosis all of a sudden, fret not.