Pregnancy 101 | National Geographic

(elegant piano music) – [Narrator] The product of
millions of years of evolution, the human body is capable
of many remarkable things, but none of which may
be quite so incredible as the development of life in utero. (calm music) Over three million babies are born each year in the United States alone. Worldwide, the highest
fertility rate is found in Niger, where the
average woman gives birth to approximately 6.49
children in her lifetime. Singapore sits on the
opposite end of the spectrum at just 0.83, less than
one birth per woman. While the number of births, customs, and traditions vary
from culture to culture, the developmental process
is essentially universal. Derived from the Latin word praegnantem, meaning before birth,
pregnancy is the period in which the fetus
develops inside the womb. Typically lasting around 40 weeks, human pregnancies are divided into three trimesters
of three months each. (calm music) Pregnancy begins in the uterus, where a sperm fertilizes an egg. If the sperm carries an X chromosome, the baby will become female, while a Y chromosome will result in the baby becoming male. The fertilized egg, or zygote, divides repeatedly as it travels through the fallopian tube, implanting itself on the uterine wall to form both the embryo and a specialized organ
known as the placenta. Found only in eutherian,
or placental, mammals, the placenta will manage waste
and provide key nutrients, oxygen, and hormones
via the umbilical cord. The brain, which will continue to grow and develop
throughout the pregnancy, makes up nearly half of the
embryo in these early stages. As the eyes, nose, ears, and mouth, along with all major organs continue to develop in month three, the baby will begin to look more and more human with each passing day. The second trimester lasts
from weeks 13 through 27. The fetus will more than double in size during this time, and soon, its movements may be felt by the mother. Hearing first develops around week 18, but the fetus will not respond to sounds outside of the womb until
approximately week 25. Starting at week 28 and
lasting up until delivery, the third trimester is a
time for final touches, such as eyelashes and taste buds. (light music) With most major development complete, the fetus will gain nearly
half a pound a week. To make room for this rapid growth, the mother’s internal
organs adjust significantly throughout the pregnancy. Dropping lower into the pelvis, a fetus typically turns heads-down in preparation for birth. Most bones will have
hardened by this time, though the skull will
remain relatively soft to ease the delivery process. Labor is divided into stages, beginning with the dilation of the cervix and resulting in the delivery of both the baby and the placenta. Despite thousands of years
of human pregnancies, scientific understanding
has only recently begun to catch up, leading to
an increase in success and safety for both mother and child. As our understanding of
pregnancy continues to develop, so do technology and
reproductive medicine, with much more in store for
the future of pregnancy.

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100 Responses

  1. National Geographic says:

    Human pregnancy typically lasts around 40 weeks and is divided into three trimesters of three months. What intrigues you the most about this developmental process?

  2. Dr. Josh Axe says:

    Liberals LOVE murdering unborn black children, since deep down, they still despise people of color, as they openly did when they formed the KKK and fought to keep slavery legal,

  3. E M says:

    Hey um I think I’m pregnant

  4. arieriapratama says:

    Well FYI, the detail process of the development of human fetus was already mentioned on Qur'an, >1400 years ago. Hmm…..and Prophet Muhammad(from hadith) do said that we must respect more our mothers, and then our fathers…..hmm….quite interesting…..

  5. Mia Norton says:

    …The average woman gives birth to 6.49 kids…..I wanna meet that .49 kid right now

  6. HidayatZho ouuuKevin says:

    Kiamat 1989 (-Repell)-

  7. you I says:


  8. Bb Vanz says:

    Im 38 weeks on Monday duedate 21-26 this months.. can’t wait to hold my baby boy ?

  9. SM SAVVY MEDIA says:

    Excellently explained

  10. Little Prince says:

    Sadly… some mothers abort babies ?

  11. Candie P says:

    Thanks mom!?

  12. ellie c says:

    How can you give birth to 6.49 children? What you have half a child? ?

  13. Grey Love says:

    God is a woman

  14. ritambhara shroti says:

    Just two single cell and a Miracle

  15. Jay Jay says:

    Dang what's with all the comments about the Quran

  16. adri says:

    the female body is truly amazing

  17. Angel Crreon says:


  18. Nusaybah Ansar says:

    Since when to women have 0.49 and 0.83 children?

  19. angela perez says:

    Pregnancy really is a fascinating thing ? I’m 22 weeks pregnant with a boy and while it definitely hasn’t been easy, when I get to meet my precious baby boy I’ll know it was all worth it ?

  20. kayla A. says:

    So nobody gonna talk about 0:30

  21. Ranveer Jaipuriyar says:

    Women deserve more respect than men.

  22. Sadie Lanah says:

    I don't even plan on getting pregnant later in life, I just find this really interesting

  23. Fakiyu uu says:

    has been quoted in al quan since 1,400 years ago..

  24. Sakura says:

    I want to be pregnant too but it so hard to find the right guy ???

  25. Belieber123 says:

    I can’t wait to be pregnant

  26. Mackenzi Lowery says:

    I'm 7 months, I cant wait omg this is so longgggggggg

  27. Trump2020 says:

    Singapore 0.83% pregnancy rate… hmmm

  28. Cool Puppet says:

    “6.49 children”

  29. Akhil N says:

    i knew it tht was how all my sisters where born

  30. Laker#24 says:

    Im hoping my wife is pregnant our first baby its only been 2 weeks???

  31. Nature Stories says:

    A M A Z I N G

  32. Hassan Abdul says:

    All of the stages mentioned above are mentioned 1438 years ago in the Quran by God. Chapter 23 verse 12 and on. How can unlearned Prophet knew all of these undiscovered knowledges without being informed by the creator of the creation. Look it up you will be surprised.

  33. Wiki Health says:

    nice video

  34. Portia Alexander says:

    Pregnancy 101 by National Geographic. It is a peaceful video.The time frames and animation present a idea of how a good pregnancy occurs.

  35. Eddie Suarez says:

    Thank good i got a big flappin weiner

    Carrys my nut while I can go bust another one

  36. Roger Lowford says:

    Superb video! It assisted me a lot!

    Critical Video!I really love it! It assisted me a lot!

  37. Amisha Sharma says:

    That was scary

  38. Becoming Danielle says:

    Human creation(?) process surprises me every time… Respect for all mothers ❤️

  39. Lufanlove says:

    We really have such fascinating bodies, I am so proud to be a woman <3 I really feel like I am pregnant symptoms started just yesterday, I had light bleeding and cramping followed by other things, and the light bleeding stopped and I still have the tummy pains and the tingly sensation in my stomach and just today my breasts started to feel tender and sore, and my whole body aches, I literally was laying on the floor before because I felt so weak and my muscles felt like mush, my boyfriend literally had to pick me up and put me in bed because I was that weak, I feel really tired and have headaches too, do you think I could be pregnant? I am taking a test in the morning when I wake up, will it show already if I am?

  40. Lil Criminal Psc 831 says:

    If you light up many matches can that hurt your fetus if you breathe it ?

  41. Roger Lowford says:

    Great video! It assisted me a lot!

    Abundant Video!I really love it! It helped me a lot!

  42. Straate Hannah says:

    God is good he made all of this

  43. Daniel Embree says:

    No political rants in the comment section? !

  44. Sukamto Kamto says:

    Thank's god for giving pregnancy to a woman in the world

  45. Ellianna Johnson says:

    When boys say that there life is harder we grow children!

  46. Greg Constadoni says:

    Hey there, DR. ebozojie at [[email protected]] can help you get pregnant.
    My name is Mrs emily and I am now a mother of twins girls with the help of DR.EBOZOJIE. Not knowing that my contact with this woman will really solve my problem. I am happy to be the one to write a testimony about this woman here on the net and this really makes this spell caster a real trustworthy spell caster to help you. When i was pregnant, my husband flew me to Florida where I stayed for 6 months before giving birth. My life is complete with my children here now. I am now a proud successful mother. THANKS TO DR.EBOZOJIE. You can contact her to help you with your infertility and you will be fertile to become a mother no matter your problem. Even with IVF, i was not able to get pregnant. her help is a miracle in my life. Email her at {[email protected]} OR Whatsapp +2348154644597 . THANK YOU

  47. Roger Lowford says:

    Awesome video! It assisted me a lot!

    Boundless Video!I really like it! It assisted me a lot!

  48. Abdelaali Mhamdi says:

    Dieu vous bénisse

  49. Milo Estobar says:

    Hey! I didn't want to see pregnancy! I want to to see pregananant! Donkey google…

  50. Dark Comet says:

    Respect all WaHmen

  51. Michael Obendo says:

    God will forever be Almighty.

  52. Futbolgamer says:

    What happens when you have twins or TRIPLETS!?

  53. Rebeca S says:

    I thought the beginning of the video was a commercial…

  54. toophat baby says:

    Can't wait to thank BigBang

  55. James Bryan Tenorio says:

    The Beginning of Life

  56. ishe nicole says:

    I see the narrator is an atheist….evolution THEORY was invented by the ancient pagan Hindus.. This theory was then pushed by atheist elites

  57. D&RG Railfan says:

    If a baby were a woman's body than why doesn't she have 2 heartbeats, 2 brains, etc?

  58. Trustworthy McLegitimate says:

    I dont get why this video was recommended to me after watching a reaction video of episode 4 of Chernobyl… ya know… the baby…
    Googles algorithm is fcking creepy

  59. ForgottenJohn says:

    Me looking in my recommended

    YouTube: F E T U S

  60. Thecompton1963 says:

    0:02 bad form ??‍♂️

  61. Sahana Sankaradoss says:

    As an 11 year old this is the appropriate video to watch when I’m bored

  62. ohitsu stu says:

    Evolution is claptrap. God created it all.

  63. Shalea Shaw says:

    Absolutely beautiful but extremely terrifying. Mad respect. My uterus will most likely stay empty forever.??????????

  64. Kimberly RR says:

    How do you give birth to 6.49 children

  65. keiko jade tandean says:

    How do u have 6.49 children?

  66. Makhni G says:

    With u??

  67. Yaamin Mohmmed says:

    Pregnancy is such a special thing between a mother and her child ???

  68. An Extraordinary Person With No Life TM says:

    Im becoming an uncle in 5 months!

  69. Oksana Martynyuk says:

    6.49 babies…. im beginning to freak out.

  70. Topacio Daphnne says:

    This is an awesome video ? thank you for this.

  71. naomi Sapphire says:

    There too many people there are 7 billion people!

  72. Asnawi Bato says:

    I love you mother and thanks for your sacrifice.

  73. marisol says:

    im praying im not pregnant ksskakakwkq

  74. Indah F. Freztiyana says:

    Me: Watches NatGeo about pregnancy…
    My father: Ooh this is great, you finally ready to get a husband and start your own family, so who's this lucky boi…?
    Me: I haven't programmed that path yet…

  75. unknown user says:


  76. Countrycowboy08 says:

    Yet they don't call it human if it's below 28 weeks. Or maybe they should call it like this: a fetus is a human unless the parents don't want it, then it's just a blob of meat.


    Dear National Geographic! Would you please improve your videos with transcripts as well? Many thanks!

  78. Olgay Celik says:

    The world population is increasing. This has to be stopped.

  79. Abul Hasan says:

    Also fusion of sperm takes place at ampullary part of the fallopian tube not near the isthimus

  80. Sam Sardar says:

    So beautiful
    Emotional ???

  81. Gerald Dela Cerna says:

    thanks i learnt a lot. can you also make a video and explaining it for the miscarriage?

  82. frogLove Love says:


  83. Raneem Medhat says:

    I'm taking this in school this year!!

  84. Huzeyfe Bulut says:

    This is mentioned in the quran 1400 years ago, for the people who wanna do research, go and read the quran??

  85. HASIM ANSARI says:

    This process of pregnancy is mentioned in Quran 1400 years ago Alhamdoliallaha…

  86. 30minforasn says:

    How ironic. This showed up on my recommendation today. Video was made 9 months ago.

  87. Sarah Doan says:

    The very definition of FASCINATING MIRACLE. Wow! We all are complete miracles!

  88. Di Bn says:

    Nice information…Thank you.

  89. a says:

    I wonder when they’re gonna find a cure for this parasitic infestation that is mutilating all these poor women ? so tragic ?‍♂️

  90. Staying Positive says:

    Before I formed you in your mother’s womb I knew You—God (in Jeremiah 1:5)

  91. Cristina Mariotta says:

    Pregnant Women Baby Born USA UK Romania Japan China

  92. neha khatri says:

    I am now 19 and going to marry my love in coming 3 years.while watching this my stomach feel something else a sweet feeling.thanks god for making me a woman.i am proud of all the mothers thank u mothers.

  93. M Tomo says:

    this ought to debunk any pro-choice claims

  94. I L O V E C H O C L A T E says:

    Welcome to another episode of…

    why in the world is this in my recommendation

  95. Iamkylie G says:

    It’s amazing what we women can do, we can grow another human inside of us which is amazing!

  96. ruqsar sultana says:

    Allha mujhe bi Maa bana….

  97. suraj singh says:

    Its gonna trigger a lot of people who says its not a baby. Stfu

  98. Alessandra Fiorani says:


  99. keepsteddy says:


  100. 김주혁 says:

    Pregnancy is one of the most mysterious things. The birth of life is very mysterious. Yet we have a lot to explore about mysterious phenomena. I want to be a human scientist and explore the human body.

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