My period came on light last night. This morning I woke up had a pad on and there nothing there. My period was due yesterday (from what the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> said) and was a day late from another app I used. Is this normal ? What’s going on?

Here the picture of it spotting yesterday. I wipe a couple time and it was pink. I even got a little blood blot in paper now waking up and waiting all day for my period is stressing me out