anyone had super late bfp

Shadene
Anyone had bfp super late...!!!!!
I am now on cycle day 35 of a 28day cycle which I always have I dunno what's going on tested today and got bfn on cycle day 20 and 21 had spotting and now nuffin was that my period and I will come on as normal after um so confused as can't be pregnant because why is it not showing I'm going out of my mind here can anyone shed some light on this or their experience as I need help am I out this month please give any input or suggestions 
Many thanks X