13w 6d WORRIED

Had a doctors appointment today and she went to find the heart beat on the Doppler for the first time. She said she heard movement but she couldn’t find the heartbeat and it was totally normal. I had an ultrasound at 12 weeks and saw a heartbeat of 178bpm.

We went home and found what I think (compared to YouTube videos) what was a heartbeat on a Home Doppler.

Having had a miscarriage in January, I am COMPLETELY a nervous wreck. We were going to announce the pregnancy this weekend, but now I feel like something might be wrong. Can anyone give me some reassurance?