Soneone please help...im goin nuts!

I got off bc 9 months ago and ever since my cycles have been exactly 49 days. Well I am now at 56 days with no signs of AF starting anytime soon. But for the pat 2 weeks ive had mild cramping. I did test at 3 days after AF wa sdue with a bfn. Is there any way I may still be pregnant or do I just need to wait AF out? Thank you...