i’m now 16 dpo, and a day late on my period. still negatives. about day 10 i had a faint line on my clear blue test, and the next day on a first response it was gone. i am NEVER late on my period but here i am. i’ve been cramping badly but had no blood/spotting at all. tested just now and it’s a BFN. as have all my tests since day 7. i had some lines here and there but now i’m afraid i had a miscarriage too early to see. does anyone know what could be going on?