Heartbeat

Mrs b • ********ITS A GIRL********. X Due January 14th 2015 x
I was 15 w yesterday and had to go see my midwife I nearly ended up having to go hospital for a emergency scan because she couldn't find a heartbeat, after phoning the hospital and waiting my midwife tryed again and finally found it 109bpm (baby wouldn't stay still) should u be worried? It seems a little low from what I've seen other people on here posting