Last time AF showed was 10/22...

Katie. • 31 mother to two amazing boys, 8 and 3. I also have an amazing step daughter who is 19.
Still getting BFN pregnancy tests. I have an apt to get my blood taken next week if I don't get my period. 
Even though I've obsessively taken a pee test every morning all negative. I'm hoping I get something back from the blood test saying otherwise 
Anyone experience this????