Help me please 💛

Hello ladies.

I am currently 22 DPO. I’m 3/4 days late for AF. I’ve tried 2 tests and both came back negative. Not long ago I went to the toilet and noticed a very light red colour.. I know this is much but then when I wiped again it was gone. What could this be? Am I starting my period? Could I be pregnant? I don’t know what else to do? Xx