Gemma Wyer answered
The average human gestation (from conception to birth) is two-hundred and sixty-six days.
First Trimester
The first trimester starts from the day of your last period to the end of the twelfth week.
By the end of week twelve, your baby will be the same size as your little finger. Morning sickness is common during this trimester.
Second Trimester
By the end of week eighteen, your baby weighs about the same as a chicken breast, and will start to hiccup and yawn.
Your baby doubles in weight during this trimester.
Third Trimester
The third trimester starts at week 29 and lasts right up until the birth. During this trimester your baby will become sensitive to temperature.
Towards the end of your pregnancy, your baby will move down into your pelvis, ready for birth. This is called 'engaging'.
Pregnancy Facts
First Trimester
The first trimester starts from the day of your last period to the end of the twelfth week.
By the end of week twelve, your baby will be the same size as your little finger. Morning sickness is common during this trimester.
Second Trimester
By the end of week eighteen, your baby weighs about the same as a chicken breast, and will start to hiccup and yawn.
Your baby doubles in weight during this trimester.
Third Trimester
The third trimester starts at week 29 and lasts right up until the birth. During this trimester your baby will become sensitive to temperature.
Towards the end of your pregnancy, your baby will move down into your pelvis, ready for birth. This is called 'engaging'.
Pregnancy Facts
- During pregnancy, the average woman's uterus will expand to up to five times its normal size.
- Your baby starts moving at around eight weeks of pregnancy.
- Your unborn baby's temperature is usually half to one degree higher than yours.
- The last organ to develop in your unborn baby, is the lungs.
- You only need to eat three-hundred calories more a day, when pregnant.
