Karson Lechner (4) fetal development timeline

Timeline created by skritzman@western.k12.in.us
  • Ovulation

    Ovulation is the release of an egg from one of a woman's ovaries. After the egg is released, it travels down the fallopian tube, where fertilization by a sperm cell may occur. https://www.babycenter.com/pregnancy-week-by-week
  • Conception

    Conception occurs when a sperm cell from a fertile man swims up through the vagina and into the uterus of a woman and joins with the woman’s egg cell as it travels down one of the fallopian tubes from the ovary to the uterus. https://www.babycenter.com/pregnancy-week-by-week
  • Month one

    Month one
    Deep in your uterus, your baby is an embryo made up of two layers, and your primitive placenta is developing. https://www.babycenter.com/pregnancy-week-by-week
  • Month two

    Month two
    Your baby is constantly moving, though you can't feel it. Meanwhile, you may be making decisions about prenatal tests. Size: 0.6in long, 0.04oz. https://www.babycenter.com/pregnancy-week-by-week
  • Month three/ End of first trimester

    Month three/ End of first trimester
    Your little one's teeny toes can curl, her brain is growing furiously, and her kidneys are starting to excrete urine. Size: 2.1in long, 0.5oz.
  • Month four

    Month four
    Get ready for a growth spurt. In the next few weeks, your baby will double his weight and add inches to his length. Size: 4.6in long, 3.5oz. https://www.babycenter.com/pregnancy-week-by-week
  • Month five/ Beginning if second trimester

    Month five/ Beginning if second trimester
    Congratulations, you're at the halfway mark in your pregnancy! Your baby is swallowing more now and producing meconium. Size: 10in long, 10.6oz. https://www.babycenter.com/pregnancy-week-by-week
  • Month six/ End of second trimester

    Month six/ End of second trimester
    Your baby is long and lean, like an ear of corn. And your growing uterus is now the size of a soccer ball. Size: 11.8in long, 1.3lb. https://www.babycenter.com/pregnancy-week-by-week
  • Month seven/ Beginning of third trimester

    Month seven/ Beginning of third trimester
    Welcome to your last trimester! Your developing baby's eyes may be able to see light filtering in through your womb. Size: 14.8in long, 2.2lb.
  • Month eight

    Month eight
    Your baby is plumping up! Meanwhile, your expanding uterus may cause heartburn and shortness of breath. Size: 16.7in long, 3.7lb. https://www.babycenter.com/pregnancy-week-by-week
  • Month nine

    Month nine
    Your baby is gaining about an ounce a day. You may feel her "drop" down into your pelvis as you approach your due date. Size: 18.7in long, 5.7lb. https://www.babycenter.com/pregnancy-week-by-week
  • Birth of child

    Birth of child
    The baby is ready for delivery and is now 20.2in long and weighs 7.6lb! It has been a full nine months and the new born is healthy and ready to come into the world.
  • Period: to

    First day of last period