Late period, but not pregnant?


Hi ladies, im not quite sure what's going on. I am normally spot on with AF but im currently 2 days late. I've tested twice and both were negative. I think i may have missed my period or be late because of stress. Desperately ttc. I had all the signs i was coming on, spotting, cramps and for the last few mornings I've had a bit of blood when I've wiped.

Any one had anything like this? Is it stress?