RE:QUESTA space for resources to help RE teachers and their students explore the Christian faith
Lat Blaylock, Editor, RE Today
We are delighted to share with you our library of resources. You can use the filter feature below to find topics most relevant to your curriculum.
From Conception to Birth
How does the foetus develop?
How does a foetus develop? Take a look at this timeline for more information.
First trimester (months 1-3)
- Day 1 - conception takes place.
- 7 days - tiny human implants in mother’s uterus.
- 10 days - mother’s periods stop.
- 18 days - heart begins to beat.
- 21 days - pumps own blood through separate closed circulatory system with own blood type.
- 28 days - eye, ear, and respiratory systems begin to form.
- 42 days - brain waves recorded, skeleton complete, reflexes present.
- 7 weeks - photo of thumb sucking.
- 8 weeks - all body systems present.
- 9 weeks - squints, swallows, moves the tongue, makes a fist.
- 11 weeks - spontaneous breathing movements, has fingernails, all body systems working.
- 12 weeks - weighs one ounce.
Second trimester (months 4-6)
- 16 weeks - genital organs clearly differentiated, grasps with hands, swims, kicks, turns, somersaults (may now be felt by the mother)
- 18 weeks - vocal cords work – can cry.
- 20 weeks - has hair on head, weighs one pound, 12 inches long
- 23 weeks - 15% chance of viability outside of womb if birth premature
- 24 weeks – current legal limit for abortion
Third trimester (months 7-9)
- 24 weeks - 56% of babies survive premature birth.
- 25 weeks - 79% of babies survive premature birth.
- 37 weeks – pregnancy classed as full term
This information is taken from the BBC Health website.