Subchorionic Bleeding

Amanda • 30/ 🇨🇦 / Baby Girl born 08/29/19

I had my first ultrasound about 4 days ago. Doctor said everything looks good.. he saw the sac, but I measured 4 days earlier than I thought I was so couldn’t really see baby yet as that put me at 6+1. My levels are good and progressing perfectly. More than doubling in 48 hours recently. But he said he did see some bleeding beside my placenta, which would explain the light spotting I’ve been having on and off. He said it’s nothing to be worried about and shouldn’t have any affect on baby. Would this be subchorionic bleeding? He didn’t really say much else other than to not worry too much about it.