Clearblue digital question

H

So last cycle I ovulated CD 24 and I wasn’t going to start testing with the clear blue digital until CD 18 to be sure I had enough in case I ovulated late. Well today I got a pretty dark line on my pregmate strip and I am only CD 16. Since it isn’t FMU should I wait until tomorrow to test with clear blue digital or should I do it today even though it won’t be FMU like the directions say? I just don’t want to miss my peak! Thank you for any advice 😄