Subchorionic bleed 6w6d

Hi ladies, I just wondered has anyone else experienced a Subchorionic bleed? This is our 3rd pregnancy through IVF however the two previous resulted in misscarriage. Yesterday at 6weeks and 5days I was so violently sick with 'morning sickness' I burst a blood vessel causing a haemorrhage bleed in the uterus. Of course I freaked out thinking I was going to loose the baby because there was so much blood but thankfully we got to see the heartbeat and baby is ok!! Anyone else had this?