Baby dropped?

I had to go to the Er for some preeclampsia symptoms and the nurse found my baby’s heartbeat higher up (the left pic) and that was 3 days ago. Today I tried to find it with a home Doppler in the same spot the nurse found it and couldn’t find anything, so I went lower and basically had to put it on my pelvic bone and found a strobe heartbeat there(left pic) does this mean she has gone lower? 34 weeks and 1 day