Chemical, or body messing with me?

Amber • 7/1/09 miscarriage (8w2d), 5/31/10 my son was born, 5/26/15 chemical, 6/24/15 chemical.
I posted yesterday with one response, so I'm hoping for more insight this time. 
Thursday around 4pm I got a faint positive at 9dpo. Friday morning I tested again and it looked the same. Saturday it was negative. Yesterday afternoon I got a faint positive again. But between them has been 3 other negatives as well.
I would have normally said AF was due today, but Glow says it's due in 2 days (on the 27th.) 
My cervix is high and soft (can't tell if it's open or closed not too good at that yet.) My BBT is staying up since I ovulated too. I've got some light cramping, sore breasts, higher ends sense of smell and headache. 
But with the negatives, and the positives I have gotten not getting darker I don't know what's going on. Could my body be screwing with me, or do you think it's a chemical pregnancy?