Day 43 with no AF or BFP

Katie
So, I have been TTC since November when I had my implant removed. Since then I have had a 28 day cycle and a 31 day cycle. Now I am on day 43 with no sign of AF. I have taken a HPT on day 30, 36 and 43 all negative. What do I do now? Just wait and see? When should I make an appointment to figure out what the heck is going on, or am I just being impatient?