#5 – At 18 Weeks Hearing Is Developed
Nine weeks after conception, small indentations appear on each side of the neck.
By week 16, sounds such as a gurgling stomach or air whooshing through the lungs can be heard.
At 24 weeks, the head turns in response to voices . In fact, studies show that babies remember voices and music.
#4 – Baby Can Hear When You’re Short Of Breath
As the baby grows, there may be increased pressure against the diaphragm.
Lungs compress and sometimes, a woman experiences shortness of breath.
As breathing gets louder and deeper, the baby can hear the actual air flow through the lungs.
#3 – Does Music Make A Music A Difference?
Studies do not support the notion that playing classical music raises a babies IQ in utero .
However, playing music that boosts your mood and activity may make your baby happier.
#2 – By The Third Trimester, Your Baby Knows Your Voice
Science shows that babies not only recognize their mother’s voice but prefer it above all others .
Research  shows that by seven or eight months in utero, a baby’s heart rate will slow down whenever mom is speaking, indicating that this can be quite calming for the baby.
#1 – The Heartbeat That Bonds
A baby in utero can hear mom’s heartbeat.
It becomes a soothing bond between baby and mother.
Studies have shown that some newborn infants find going to sleep easier if they listen to a recording of mom’s heartbeat.
 PennState; Probing Question: Can babies learn in utero, February 23, 2009, Adam Eshleman.
 The Endowment For Human Development; Prenatal Summary.
 Journal Of The Royal Society Of Medicine; The Mozart Effect, April 2001, J.S. Jenkins, MD FRCP.
 Science Mag; Sound Of Mom’s Voice Boosts Brain Growth In Premature Babies, February 23, 2015, Emily Underwood.
 Parenting; What Babies Learn In The Womb; Laura Flynn Mccarthy.