Brown spotting at 17+3? Very scared...

Went to the bathroom to pee and noticed a small amount of dark brown on my liner, so I wiped and had a good amount of this light brown discharge. I’ve had intermittent yellow and mucus discharge throughout the pregnancy, but not this brown. No pink/red and no pain/cramping. Had sex 2 days ago, which was the first time this pregnancy since I’ve been scared of spotting... maybe that contributed?

I’m going to call my OB line regardless, but anyone else have this and baby be okay?? I unfortunately don’t have health insurance this month so I can’t pop in for a quick check :(