No luck with fetal doppler 😥

9 weeks 5 days - I tried out my fetal doppler yesterday and couldn’t find a heartbeat. Watched YouTube tutorials and tried again this morning, no luck. I hear my heartbeat strong in my arteries on both sides and I think I found my placenta, but can only hear my own heartbeat. I have my first ultrasound in 3 days, so praying there’s a healthy baby in there. I’m so worried!!!