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  1. Understanding your baby’s heartbeat: A parent’s guide

  2. What's considered a normal fetal heart rate - BabyCenter

  3. Normal vs. Abnormal Fetal Heart Rate - Verywell Health

  4. When Your Baby’s Heartbeat Starts and When You Can Hear It

  5. 3 Ways to Hear the Fetal Heartbeat - wikiHow

  6. Fetal Heart Monitoring - Johns Hopkins Medicine

  7. Are You Listening? Your Baby's Heartbeat Speaks Volumes - UnityPoint Health

  8. Fetal heart conditions: What to expect when your unborn baby is ...

  9. Fetal Heart Beat - Hopkins Medicine

  10. When can I hear my baby's heartbeat? - BabyCenter