This is my first pregnancy and I am 7 weeks and 5 days along. My first appointment is scheduled for next Wednesday when I will be 8 weeks 4 days. My midwife doesn't do any ultrasounds until 20 weeks. I find this perfectly fine, except, this is my first time and the chances of a missed miscarriage worry me to death. What can I do to put my mind at ease? What else can they do or will they do to hear the heart beat?