I tried my Sonoline B fetal Doppler again today (8w5d) with a full bladder and found that sweet little heartbeat! It was so faint that the rate number wouldn't register on the screen but I was able to record the audio with my phone ❤. My anxiety has been so high, but I have such a sense of peace now since my first appointment isn't until next week. It takes some patience, but give it a try if you have one ladies. The full bladder definitely helps!