Anybody else in the same boat??

So stopped BC in May/June and had bleed
11 July 5 days longs
This cycle was 37 days
Bleed on 17th August 
Cycle was 58 days
Nothing in September
Bleed 14th October
Cycle lasted 35 days
Bleed on 19th November
Currently on cd 44???
Af was due Boxing Day and no signs and bfn..I keep thinking that I've delayed it by overthinking and hoping I'm pregnant..
Should I see the doctor or what do you suggest is going on? 
Thanks in advance for the advice