Re: why may my period be lighter than normal
there are a few things that can contribute to your light period. I don't know your age though.
Do you have a history of ovarian cysts?
Are you on birth control pills? because they can cause light periods, and so can ovarin cysts which make you miss a cycle which would make the period very light.
if you do research on how a womans reproductive system works, it's not all that simple and it's a fine tune thing that occurs each month. If something so minute goes wrong, such as having an ovarian cyst, it gets capsulated inside the ovary and can't come down the fallopian tube and then all the other things can't happen as it does smoothly each month in order for glands to work to tell the uterus to build up and then slough off which hence means having your period.
I think you would find it absolutely fascinating to see how it all takes place each month. when you have the time, do some research and you'll see just how wrong things can go to delay the period and only cause spotting and by the way, brown blood means it's old blood.
when I had chronic problems with my ovarian cysts, which started in my twenties and only got worst well into my late mid 40's, and I wound up having to get a hysterectomy because of all the problems it gave me.
I would advise you that if it bothers you where you're not getting any rest over it, to call your gynocologist and make an apptn. for a pelvic exam.
IF you think you're pregnant, they have tests now that can detect pregnancy within one day of being late.
I hope you get an answer.