The Heart Rate Test
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One of the most common of old wives’ tales regarding pregnancy centers around your baby’s heart rate. Many people swear that if your baby has a fast heart rate — over 170 beats per minute — you will be having a girl. The same tale says if your baby’s heart rate is around 150 beats per minute it’s likely you are having a boy.
However, it’s likely this is not real. All babies have a pretty fast heart rate during the first trimester. The heart rate can also fluctuate during various times depending on factors like whether the baby is sleeping or active, meaning it could change from one day to the next depending on conditions.
