Ovulation bleeding..

So for 4 days Iv had clearblue advanced flashing smileys.. I’m not sure when I’m due on as I’m very irregular. The first flashing smiley was on CD14. Now on CD17 Iv had a small amount of red blood when I went to the toilet this morning. It’s now the afternoon and iv had no blood since. Just stretchy pinkish/red cervical mucus.

What could it be?

So confused 😣😣😣