Is it normal to have a period more than a month?

Depends: Normal periods come every 21-35 days. You ovaries do not follow a calendar. They do not know what day, week or month it is. Periods do not come once per month. They come every 21-35 days. Any relationship to an actual calendar is purely coincidental. If your periods come every 24 days for example then sometimes you will have them twice a month.

No.: If your menses have been regular and now are lasting longer periods of time, you need to see your gynecologist as something more serious could be going on.