I don’t understand!! 😫

I’m 4 days late according to one app and 3 according to glow. I know it isn’t much but I just took a test just to make sure and all 3 say negative. Maybe it’s the stress around the holidays 😭😭 I’m hoping it’s just to early to tell.. I haven’t had any symptoms I usually do when AF is about to come except it feels like I’m about to start but when I go to the bathroom and check there’s no pink or spotting. Are these tests from amazons ovulation tests even good! Lol ugh I’m so upset