I appreciate your query.
A normal menstrual cycle is defined as having a length anywhere between 21 - 35 days, with individual variations, although the average most commonly found is 28 days.
Also, the length of blood flow is generally 3 - 5 days, though the definition or normal varies between 2 - 8 days.
Hence, going by normal definitions, your daughter is definitely normal.
Also, 2 - 3 pads per day is not a heavy flow.
However, you need to be careful as adolescent girls are most prone to anaemia
, and since her cycles are short , as well as go on for longer period, she can develop iron deficiency
Make sure she consumes lots of green leafy vegetables, meat, liver
, and protein rich foods like eggs, dal, paneer etc.
Also, a girl's menstrual cycle takes upto a couple of years to regularize, that is the hormonal
axis needs a couple of years after menarche
to stabilize itself.
Hence, she should have more normal bleeding within a year or two.
If the bleeding during periods becomes excessive , painful or there is heavy passage of clots, you need to consult a doctor to rule out coagulation defects or any other problems.
Hope this reassures you.