Doppler at 11 weeks looking for relatable stories :)

I am 11 weeks I have been able to Check for babies heart rate on at home Doppler since 9 weeks I check normally twice a week I just had my ultrasound at 10 weeks 5 days baby was healthy with heart rate of 177 I was able to pull it on the at home Doppler as well. This week I have tried the last two days and I keep getting what I think is my own or the placenta heart rate. Has anybody else found it harder to find? Maybe because of the placenta.

Side note: please be kind I do know it’s early but I was able to find it earlier than this week and I know it was the correct heart rate per my aunt who is a fetal nurse :) I have also had 3 losses hence my want to make sure this baby is okay.