14/15dpo. Bfn, No AF. Loads of symptoms. Help!?

Cassie

Good morning lovelies. I have a few questions :D. So I am either 15DPO or 14DPO. I have two different fertility apps and one puts me at 15DPO and the other at 14DPO, as well as one has my period for yesterday and one for today. Anyway, I have had BFN's this hole time, I've done FRER & Wondfo dip sticks and nothing. But my Boobs hurt, i've been nauseous for the last few days. I also had some painful twinges in my lower abdomen/uterus area a few days ago as well(Sunday/Monday). Wednesday & last night I noticed faint blood smears when i would wipe, and I mean, just a little. Now with my period I NEVER get spotting before hand, she always comes full force, like to the point were i ruin clothes(TMI I am sorry). Now, is it still possible that I am pregnant, and just don't have enough HCG in my urine to detect? Implant late? Symptoms I have been having: -Vivid dreams -Sore boobs -Nausea -bouts of diarrhea(TMI) -Light cramping -Feels like im starving(again, don't know if that is the nausea) I am really trying not to get my hope up, but just need some advice, stories of people who get a BFN at 14DPO/15DPO and go on to get a BFP a little later?