Well today I'm suppose to start my period well its light pink and mainly brown I want to know if someone can help me please

Your menstrual blood and tissue will be anywhere from watery light pink to thick clots of dark red or brown. It's normal. Brown means air has hit it for a while before you see it.

How long have you been menstruating?

Your menstrual blood and tissue will be anywhere from watery light pink to thick clots of dark red or brown. It's normal. Brown means air has hit it for a while before you see it.

How long have you been menstruating?

Just started today after being 18days late

I mean how many years/months?
And are you sexually active?
Are you wondering about being pregnant or not?

I am 46 years old and have been on my period for 12 days now .Could this be a sign of pre menopause.

Have you talked to your doctor about this. That would be the best source of info. Could be the starting of menopause.