Help what could this be?

Francesca • I have a little boy age 3, Rueben! , 17months TTC, I finally got my ➕ on the 24th October 💫👶🏼
So AF finished about 2 days ago, glow says I am going to ovulate between day after AF and 4th june. Friday been my peek day, iv taken an OPK today and it's negative but what could this be?....