This little one has won the lottery of life! A woman is born with 1 to 2 millions eggs at birth¹. If mom is 35 or older, her chances of getting pregnant are only 15-20% in a given month². But, this little one will need a lot more luck to actually be born!
The first trimester is centered around brain and critical organ development. The neural tube, spinal cord, brain, and nerves have already grown in place. Arm and leg buds are present. Facial features have begun to grow. Baby is fighting all odds to grow rapidly. If the uterus finds flaws, baby may be rejected. The older mom is (45+), the greater the odds are against the growing baby. Cells are dividing into hundreds of news cells per minute to develop inner ears, kidneys, liver, lungs, pituitary gland (growth gland), throat organs and primitive cells that will form the gender of the baby.
sources: ¹
Parents.com, ²
Conceive Please.com