Hello before menstruation there will be some uncomfortable feelings and temperament changes such as pelvic drop feeling, back pain, headache, breast swelling, swelling, irritability, irritability and so on called premenstrual discomfort.

Girls generally have their first period between the ages of 11 and 16, and when the first period comes, there is usually an increase in secretions, a feeling of swelling in the pelvis, and sometimes a slight swelling of the breasts

In fact, there is not much else that can be characterized by a girl's breasts, but she may be emotionally unstable and lose her temper, and so on, and these are all signs that may be before the first period.