PLEASE help! Ovulation confusion

Nicole • Have a beautiful 1.5 year old boy 👶🏻 February 6th 2018👼🏻 . Twin boys due April/may 2019🌈🌈
So about a week and a half ago I took the clear blue advance OPK test and the first day I took it .. It was flashing. The second day I got my soils smile ( peak ovulation ) 
Well my neighbor just had a baby and gave me her ovulation strips and I tried hers today's to make sure I new how to use it and it showed up pretty positive  I know ur not suppose to take ovulation test once u had a positive but now I'm confused and don't know what one to believe. My period ended July 30th so what one do u think I should trust? I got my cervical mucus and ovulation cramps these past couple days not with the first ovulation test I took .