subchorionic hematoma

Has anyone had one of these before? This is my 4th pregnancy and I’ve never had one before. My first episode of bleeding was on the 6th and then again on the 12th. Both times were almost identical in regards to the flow of blood and how quickly it stopped. My ultrasound on the 6th is why discovered the bleed and then another ultrasound yesterday it has grown slightly so of course the fact that it’s grown has me freaking out. Each ultrasound has shown a healthy baby and a strong heartbeat. Just looking for someone to level with on this. Has your baby been born completely healthy or has your pregnancy sadly ended in miscarriage?