Faint positive then negatives there after

Kershal • MC 9th oct 2014, BFP 10th Oct 2015

So i got a very faint positive on CD28 but every test there after has been a BFN went and brought propper test today and its a BFN any1 else had this?

Brown/yellow CM yesterday with cramps yesterday and day b4 but now white/clear CM and no cramping, but cervix seems to of risin slightly and gotten a tiny bit softer,

feeling VERY off and sick the last 3 days and smell of things make me gag but that dont mean anything really..