AF 6 Days Late, CD 36

Madison

AF is currently 6 days late (which never happens) but I am still testing BFN with my first urine of the day. Been TTC for 10 months and this is the first time it has happened. Slight AM/PM nausea but no puking. About 19DPO. Continue to test every 2 days or should I get a blood test? (Sorry girls, the APP won’t let me post a pic of my pregnancy test from this AM.)