Could I be pregnant? Any ob/gyn's out there?

Frances

I wanted to wait the 10 days after the missed period to test but I gave in and tested today, 5 days after my missed period and bfN! 😭 I had my fertile window around the 14-19 of Sept and I had surgery to remove a cyst from outside of my fallopian tube on the 20, am I asking to much to think an embryo survived that? Could It be possible I got pregnant before the surgery and it travel after the fallopian tube was "fixed" and attached? (Yeah I sound crazy But Im reaching the 11 month TTC mark and going crazy!!!!)