Ectopic pregnancy or chemical? What were your symptoms?

Beth

I've had brown spotting since 7dpo. I'm now 4 weeks pregnant with several BFP and spotting is getting slightly heavier. I've read so many posts that have ended in ectopic pregnancy. I'm freaking out a bit now! I don't have any pain or cramping.

My assumption is chemical but it's been like this for days with no red blood?