Clear blue digital opk

Melissa

So IDK if this is normal or not I've been testing since Wednesday and first I got a O on Wednesday so no fertility than every day since (Thurday -sunday) I got a blinking smiley so I'm in the high fertility window is it normal to be in the high for 4 days? I was almost certain I would be in peak today (Sunday) but I'm not. And according to this site I should have ovulated today (I did have a glob of egg white cm when I wiped this morning) so IDK if the test is faulty or telling the truth I assumed I was ovulating Monday bc it detects high fertility 4 days before peak according to the pamphlet. So any and all help please. (FYI we did the deed Thursday night and Saturday morning)