Should I take a test tomorrow with FMU?

I’m 14dpo today and have had brown spotting (not enough to be in my underwear but it’s there when I wipe) for the past 4 days. I took a test yesterday afternoon and it was a BFN. Last cycle I started my period on cycle day 29 and I’m currently on cycle day 27 (I ovulated on CD13 this cycle - last cycle I ovulated CD 16). I did have this brown spotting for 1 day before AF started last cycle so I feel like it’s just her getting ready to come, just find it odd it’s last 4 days. Also, I haven’t had any other symptoms that stick out. So, should I take a test tomorrow with FMU?