The beating

I went to see my care last Wednesday November 19th to make sure if I am really pregnant even though I did 3 different pregnancy test at home and all 3 came out positive. She tried to find out the heartbeat of the baby but I think she is having trouble finding it. We tried it a little bit longer but we are not lucky enough to find it. She told me that it is really hard to find if I am not 12 weeks yet. So we did another pregnancy test and it's my 4th one and still came out positive. I never had any result that says I am not pregnant. I am just kinda doubtful because I never felt any difference, I never had any morning sickness or cravings aside from being hungry all the time but I consider that normal since I am always hungry even before it's just it gets worst and of I never had my period for 3 months now. I have a little tummy but I keep saying that I got it because I have been eating like a pig. I just keep crossing my fingers until we hear the heartbeat.