WTH self? Am I pregnant or not?

Hello. This is my first month TTC post an ectopic loss.

My husband and I were overjoyed to find out we were expecting. At 5 weeks I started bleeding and at 6 weeks we were told the pregnancy was ectopic. I lost my baby and my right tube on my first anniversary.

Doctor told me that my left tube can pick up he slack and I should have lasting issues with conceiving. We were told to go ahead and start trying when we felt ready. this is our first month back at it.

I am now 18 dpo with only BFNs! I temped to find my O date and had blood work until my hcg was less than 2. Now I’m going crazy. My temps are still up but the tests are all negative. They are all from the same batch and I’m starting to think they are defective.

Is it possible that I still and pregnant? At this point I’d take a positive OR a period.