payphone on "brown spotting...maybe ectopic?"

I know I had a very low beta...prob. a chemical or whatever, BUT...I've had brown spotting for the last 4 days and it's just getting heavier.
I'm going in tomorrow for a 2nd beta...nurse was going to schedule it for next week to see if it goes down to 0, but I told her about the brown spotting and she said I could go tomorrow.
The only times in my life that I've had this much brown spotting is with an ectopic...and that happend 3 times.
Could I be feeling one just 9dp5dt???