Anyone else late and getting bfn? I had sex on cd35 as thought it would help bring on AF (as I'm convinced I'm not pregnant) and I had a little bit of brown spotting after so thought it was AF but I've had nothing since then, no red blood and no flow. I've been having slight cramps since the day my AF is normally due (CD29) but no other symptoms really, maybe a bit of nausea and bloating but that's it. I took a pregnancy test on Saturday morning and it was BFN. Anyone else experienced/experiencing this or any idea why my period would be this late?