How close do you think?

OPK’s are a straight pain in the ass for me. I just don’t get it.😂 I tested this morning and it was barely there (just like it hadn’t been there for the past 3 days)... Tested just a bit ago and now it looks like this. If you ladies were guessing, how soon do you think O will happen? I legit only have 3 tests left (like, how does that happen?🤷🏻‍♀️) and I’m terrified I’m gonna miss it.😭