Brown blood when wiping help

BJ 💔🐈💙💔💔💔❤
Hi. I'm 4 weeks pregnant. Confirmed by a very faint positive test 3 days ago. When I wiped after the toilet yesterday I had a small brown blood stain. Didn't see it again until this morning when I wiped again and there was a bit more. I know brown blood is old blood. Does this sound normal?