The night before last i was trying to get to sleep but could hear a superfast heartbeat Sound in my ear which was really annoying. I wear ear plugs and can often hear my own heart beat, but this was so much faster. I was a bit freaked out and checked my pulse which was fine. I took my ear plugs out and changed position and it went away and I didn't think too much more about it until last night when it happened again. I then realised it must be my baby's heart beat. I'm 11 weeks. Has anyone else had this?