I’m 15 weeks today and I bought a doppler for use at home. I still haven’t been able to locate the baby with it. at my last appointment I was 13 weeks and 6 days and she also couldn’t find it but she did an ultrasound and everything was okay. Should I be finding it by now or is it still normal to not be able to? I feel like I feel her moving every now and again but not fully sure . I don’t have my next appointment till March 10th and I’m nervous of something being wrong.. any insights ?