Ovulation Cramps

Last month I knew the exact day I ovulated because I was bloated, had slight cramping in my left ovary, and had sore nipples. This month I feel nothing and Glow says I should be ovulating tomorrow. Do you think it's possible to feel ovulation symptoms some months and not others? Or do you think that I will be ovulating later this month? ...... also do u think that if I feel ovulation symptoms some months that could mean the months I don't feel anything I could possibly not ovulate that month 🤔