TTC for a year now. 13 dpo 44 cd BFN. Any hope?

My husband and I have been TTC for a year now. My cycles are pretty irregular ranging from 33-37 days. I am currently on day 44 of my cycle, in which I have never ever have had a cycle that long. I'm currently 8 days late on my period and according to glow 13 dpo. POAS Sunday And Tuesday both negative. I went into my doctors yesterday and POAS and blood test. They both came back negative. I failed to keep track of my temps this last month about half way through it because I was trying not to stress on it to much and just let it happen without thinking about it so much. I did start tracking my temps a couple days ago and they are still showing higher then normal. I have lots of cm, have had bad headaches the last 4 days and little twinges of cramps off and on. I feel no sign of AF coming. I guess I'm still wondering if there is hope that I could still be pregnant or anybody that is going through a similar situation.