Your periods have recently become lighter and shorter you are 20 years old and not pregnant so why is this happening Prior to the past few months your periods were longer and heavier?

Answer 1

As a woman our periods are not meant to stay on the cycle (per calendar) or weight so to speak. Since you began your periods as teenager no matter whether they were regular or irregular, they are bound to change with age and causes vary with; hormonal balance in your body and sometimes seasons (weather). So for you it seems like you are still on the same cylce but only the weight changed and that most probably would probably because you are growing older and/or because perhaps your hormones are taking a different turn in your body causing your periods to be lighter. If it is too light such that you only fill a pad in perhaps a whole day, better to see your gynaecologist just in case something is a miss. Otherwise it happens :)