Baby doppler because I'm crazy

Hey ladies, I'm 9 weeks 3 days with our rainbow baby. I am so nervous because of previous miscarriages that I bought a baby doppler and have been listening to the babys heartbeat every couple of days now. I dont go back to the doctor until 12 weeks so this is how I've been calming my nerves until then. Am I the only one? I had spotting at 6 weeks but nothing else after that and that was scary, since then everything has been fine. I just feel crazy! Lol