Anxiety

I have two questions. This is my first pregnancy, and I’m just having concerns/anxiety. I’m almost 19 weeks. I have a fetal Doppler. The last three days when I listen to the baby’s heartbeat I can hear the placenta whooshing sound all around the baby and in the background of her heartbeat. Usually I would have to position the fetal Doppler wand on my right or left side to hear that whooshing sound, but now it’s right around the baby and in the background of her heartbeat. Is this normal? Or is it something to be concerned with like maybe my placenta has moved? My second concern is about the baby’s movements today. I usually felt her by now multiple times, but I haven’t felt her but, maybe once today.