confused!!

Fiona

Me and my husband have been ttc for 8 months now with one BFN after another. This month we threw caution to the wind and stopped thinking about ovulation and temps etc and just enjoyed our month! I was due af on 17/11 but she never showed her ugly head. Now it's 24/11 no af 2 BFN tests..... So confused. Iv never missed an af since i first started, maybe a day late or early but never an entire week. Don't really know what to do.... Advice would be brill!!