6w1d bleeding? Advice?

Ar

During my lunch break I got a gush if blood that went through my underwear through my pants, I left work and went home by the time I got home I had stopped it was a mix of bright red blood and darker blood, no clots. I called my OB office and they sent me in for HCG levels today and will repeat on Friday. I haven’t bled since when this all happened, no cramps, feel fine. Anyone else experienced something similar so early? Without cramps or clots I’m cautiously optimistic that it’s ok (I had spotting this weekend post masterbation which went away in less than a day- but today was much more blood and I truly bled not just spot)

Thoughts would be appreciated.