how old does a girl have to be to start her menstrual cycle

I had a period july29th and then august 30th would that be a 32 day cycle

If my menstrual cycle is on when I start Loestrin 24 birth control, will it cut off?

I had a menstrual cycle that ended jan. 4th. Then I started another cycle 18 days later, on jan. 22nd. Is this normal? What c...

Ok is it normal for a mexican 6 month year old girl to have dark nip**es and start to you know grow big like starting to pop ...

Ok so I'm 21 and I was supposed to start my menstrual cycle on 1st of August. But when the time came it was abnormal all I d...

how old are you normally when you start having pubic hairs ? how old are most people ?

is there a possibility of getting pregnant even if it was the 4th day of menstrual cycle?

Ok the question is pretty straight foreward just wanting to know because of the question I asked last night.

Im 19 years old and I got my period when I was 12, I never had a normal cycle it came every 3 months sometime even every 8 mo...

About 3 weeks ago I started taking diet pills to lose the extra weight I had gained during my pregnancy.. I only ended up tak...