Strange period

My period starts on the 21 of each month but I have only been having cramps.And no bleeding not sure if that's normal or not.

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    About Tiffany Harmon
    Current: Bullhead City, Arizona
    Birth: May 24
    On since: Jan 3, 2014
    I am a christian stay at home mom. My husband and I have been married for almost 3 years now. And on 11/07/2013 we had are first baby.