Still nothing...

Becky
Is it possible to be two weeks late for your AF before getting a BFP? I'm now on CD41 and usually only 26-29 day cycles, but tests are BFN. 
​So confused. Have booked a docs appointment for tomorrow but as I'm in the UK we don't get the option of a blood test so it'll just be another urine test!
​Any advice? Thank you xxx