Crawling problem

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Updated on Jul 24, 2017
My baby is 6 n half mth... he is on his tummy also but he don't want to be on his tummy for more then 5 min. he start crying louder...... if he will not c f be on his tummy then how he will crawl.... I m too much worried about this.... he wants to sit n stand but not want to be on tummy......