Chemical or faint lines?

Sarah
Both of these were taken at the 3 minute mark. I'm 13/14/15 dpo with no signs of AF. Cervix isn't low and soft like it normally is and no spotting. AF was due on 10/22. But I'm a little concerned the lines aren't super dark and the digitals are still saying Not Preg. More worried about a chemical pregnancy I guess... Thoughts?