She was going to start her period in about three days.

There may be a medical problem if you haven't started your period by age 16.

So ask your mother when she started her period, and how it felt.

Even with the stress of the past few days, she should've started her period by now and hadn't.

She started her first period at an early age (younger than 11 years).

Keep a calendar, and mark the day you start your period each month.

Consider this: Obama is only starting his period in office.

The company started a new period of sponsorship in 2006.

The downtown area soon started a long period of decline.

In girls, normal changes include breast development, body hair growth, and starting your first period.