When can I take anther ovulation test

Pantera

MY BAD IF YALL WAS CONFUSED LET ME TYPE IT THE RIGHT WAY MY PERIOD POST TO CAME ON AUGUST 1 It always come on first of the month but it didn’t and I have been having sore boobs and feeling sick lately and cramping so I took a ovulation test July 18 to see if I was ovulation or a little ovulation and I took one that’s the first picture and it’s purple not pink so I been waiting to see when my period going to start and it’s August 4 it haven’t came yet I want to know when I can take anther ovulation test and I download anther app to see when my period post to come and it said I’m CD 9 fertile window so I want to see when is the best day I can take anther test and i been having like white stuff in my underwear a lot of it the past days now sometimes it don’t be in there sometimes it do

First ovulation test July 18

July 24