I thought I was miscarrying.. but..

I started spotting brown the day I got my bfp 4 days ago it never picked up but hasn't slowed down. Then last night when I went pee and wiped it was a quarter size of bright red on the tissue and I said ok this is it for sure... I expected to wake up with a pad full of blood followed by cramping and more blood today (I have miscarried twice so I know what to expect) but today it's back to the brown spotting only when I wipe.. it's never on my liner.. no pain.. my pregnancy tests are still positive.. any insight? I have blood work tmrw but just curious if anyone else has experienced something similar..