I hope this is it

Im 4 days late. I hsve no symptoms of a period but at the same time I have no symptoms of pregnancy i just been having a constant headache for the past few days which is unusual because i get them once a month usually so this is a new thing for me. I tested friday with a digital and got a BFN im now 4 days late I havent tested. do you think AF is coming or maybe this is my miracle baby