Am I even ovulation? UGH I just want my baby!!

Babe and I finally got ovulation strips and pre seed! According to Glow I should be ovulating in two days which would be CD15 for me, BUT my OPK test strip is still clearly a big fat negative 😭 does anyone’s app not exactly guess your ovulation window correctly? If so, then are you using strips? How many cycles did it take for you to notice a regular ovulation cycle? Did you ovulate before or after Glow’s predictions?