Hello ladies :) need help

Gussielee • gave birth to a beautiful baby boy April 28 2015
We'll I think I got a positive ovulation on July 2 but glow said my period is suppose to come today but it haven't came it .. Ovia this other great app I use say my period suppose to come July 23 do you think I should test after the 23 ? My period does normally come at the end of the month but I was trying to go off GLOW 

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