Brown spotting, nausea lessened

I’m 8 weeks 4 days roughly. Haven’t had an ultrasound yet but I have had on and off brown spotting for 3 days now. Mostly only when I wipe although today there was a bit in my underwear after going to the park with my kids. I’m still nauseated but not nearly as much as a week ago and I occasionally have a light pain in my abdomen, not quite cramping. Any chance this is just things stretching and old blood coming out?