Q: Is a significant drop in fetal heart rate from 172 to the 150s normal between week 12 and 13?

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Question: I am currently in my 13th week of pregnancy. At my 12-week ultrasound, my baby’s fetal heart rate (FHR) was around 172 bpm. At my 13-week appointment just a week later, the doctor measured the FHR with a Doppler and said it was between 150-160 bpm. I know the 150-160 range is normal for this stage, but is such a significant drop in just one week also normal? The baby seemed quiet during both appointments, so I don't think activity level explains the change. Thank you for your help!

Answer: That's a totally normal change! The fetal heart rate is typically at its highest around 9-12 weeks (often in the 170s) and then it starts to gradually decrease.

By 13 weeks, it's very common for it to settle into the 150-160 range, which is a perfect, healthy number. It's a normal part of their development as their nervous system matures. Also, the heart rate can change from moment to moment depending on whether the baby is sleeping or active.

For extra peace of mind and clear guidance when tracking your child's symptoms, the FeverCoach app is always there to help.

https://fevercoach.us