Timespans

By 9225112
  • Period: to

    Zygote

    Subtract 9 months from your birthday –
    Add 4 days to your zygote date
  • Period: to

    Embryo

    Add 4 days to your zygote date –
    Add 2 months to your zygote date
  • Period: to

    Fetus

    Add 2 months to your zygote date –
    Your birthday with year

  • Heart develops right and left chambers.

    8 week old embryo

  • Fingerprints form.

    6 month old fetus

  • Eyelids can open and weight can be up to 6.6 pounds.

    6 to 9 month old fetus

  • My birth

    I was born in 1999. This was a good thing because if I wasn’t I wouldn’t be here right now. My birthday is March 28, 1999.
  • Period: to

    Infancy

    Your birthday with year –
    Add 2 years to your birthday

  • A baby can hold its head up and reach for objects.

    3 months old

  • Heart beats regularly. Eyes and ears begin to form.

    4 week old embryo

  • Infant begins to crawl.

    7 months old

  • Bones are visible. Heartbeat can be heard with a stethoscope.

    4 to 6 month old fetus
  • Period: to

    Childhood

    Add 2 years to your birthday –
    Add 13 years to your birthday

  • Gratuation

    I graduated preschool. That was my last year in Virginia. I was going to move to Raleigh, North Carolina because of my dad’s job.

  • Ovulation in females, and sperm production in males begin.

    Ages 9 to 15
  • Period: to

    Puberty

    Add 9 years to your birthday –
    Add 15 years to your birthday
  • Period: to

    Adolescence

    Add 13 years to your birthday –
    Add 20 years to your birthday
  • Period: to

    Adulthood

    Add 20 years to your birthday –
    Add 80 years to your birthday

  • Aging begins.

    Age 30

  • Skin starts to become wrinkled.

    Age 30

  • Aging becomes more noticeable and progresses rapidly.

    Age 45 to 60