I hope everything is ok
I had a big bleed with DD at 14 weeks. I was coughing in the night with a cold when I felt a gush. I actually assumed I'd wet myself because a bleed was the last thing I expected, given that I was pregnant. It was a fair amount of blood, then I proceeded to bleed brown blood for two weeks after that. I had a scan after that first bleed and everything was just fine.
I really hope all is well with your bubbas x