help needed am lose with the bbt 😭

Maricica • Mummy to Ella born sleeping 23/7/17 👼🏻💝 mummy to josh born 19/5/18 💙🌈mummy to maddie born 18/5/20 💖🌈
Am not sure what am looking for with my bbt af should have been here on Wednesday and it still not here am not sure when I ovulation 😭