6 weeks today 1st time mom help

Brianna • Mom of both 💕 actively trying for baby number 3 😁

hello I'm a 1st time mommy. My first appointment with my doctor is August 8th. But I have a chance to do an ultra sound this week. will I hear a heart beat?? I'm super nervous to find out. But I'm scared. misscarage runs bad in my family. Im just wishing for a happy n healthy baby. any advice for this 1st time mom