need help PLEASE comment

Heather
Okay my last period was October 17th I had endometriosis removal on October 25th. BD'd Nov 2nd-5th had spotting Nov. 12th. And nothing since 
Lab work today says < 2.39 🙁 what is going on?! Is it too early to have gotten lab work? Why did I spot for one day? 
No sign of AF so I'm confused... HELP PLEASE!