Too Little Too Late!?

Today was a perfect day on plan! Ate all the right stuff and was within points! Got in just 30 minutes of sprint intervals today! Was going to do elliptical and yoga tonight but ended up going to the grocery store instead! So tomorrow is weigh in day! Was it too little too late today to show a loss on the scale tomorrow!? I am not over confident at all! I actually feel like I gained again! UGH!