Late and Neg test

Ok ladies.. I am 8 days late and have tested 2 times, once today and once a few days ago and both were negative. AF has no sign of wanting to show up. I know it is possible that I ovulated late, but I cannot stand not knowing. I have been having a lot of headaches, bloating, moodiness, and fatigue. Do I have a chance of being pregnant still with the negatives, or is it just stress of wanting this so bad?

Thanks 😊