Subchorionic hemorrhage?

Has anyone here had one before? What was the outcome? If you made it to birth did you need a cesarean? Was it preterm? Was there complications.. IE excessive bleeding?

This is my 4th baby on the way I am just over 16 weeks and baby seems to be coming along just fine.

I had bleeding at 7 weeks that was light, and then Heavy bleeding at 11 weeks (when hemorrhage was discovered) I bleed through pants down my legs ect so I'm assuming it was sizable. I had an ultrasound at 14 weeks, and there is still a hemorrhage there.

It hasn't been yet, I have another ultra every 2 weeks from there to see how things are going and if it'll shrink.

My OB doesn't have answers for me right now, but I worry and am looking to hear others experiences, or knowledge. Thank you