Should I worry

❤️ marvelys 💞 • So blessed ❤️
On Thursday I had my ultrasound able to hear the heartbeat and was at 174 doc saids everything is good ,  baby was very active , but two days ago I try to hear the heartbeat with a Doppler but I'm no able to hear anything 😔 should I call my doc? Thanks I'm 10 weeks 5 days