It’s been a pretty crazy week for mommy, my little monkey, and so I never got a chance to update your development for 14 weeks! I can’t miss that! Lots of cool stuff happened to you this week! So alas, we shall combine the two posts. Here we go!
As per protocol, you are super busy bulking up and grow, grow, growing! Like I mentioned in previous developmental posts, the fetal period is where all the established organs and body systems fine tune and grow and that’s exactly what you’ve been doing. You’ve also been doing a lot of partying and moving around, but that’s a different story haha. Here are some fun facts:
Your little hands now touch your mouth up to 50 times per hour. A division between the oral and nasal cavities formed this week as the opening in the roof of your mouth fuses shut (the closing of the palate). And your jaw opens reflexively in response to pressure at the base of the thumb.
Your maturing pituitary gland begins producing TSH (thyroid stimulating hormone), FSH (follicular stimulating hormone), LH (luteinizing hormone)and PL (prolactin).Other glands, such as your thyroid gland, also make its presence known by producing hormones.
Your newly developed T lymphocytes now leave the thymus and beginning to circulate.
Up to this point in development, sodium and water transfer through your precious skin helped regulate the volume of amniotic fluid.By 14 weeks, as the skin continues to thicken, this transfer no longer becomes possible.
By 14 weeks, your cute arms have grown to approximate their final proportion relative to your body size. As usual, leg development is slower than arm development and your legs still have not achieved their final proportion.
Your whole body surface, except the top of your head and your back, responds to light touch now.
Bowel movements begin as early as 14 weeks and continue until 20 weeks.The material first expelled from the fetus and newborn colon is called meconium. It is composed of digestive enzymes, proteins, and dead cells shed by the digestive tract.But not to worry, your umbilical cord is hard at work removing all that waste.
Your taste bud cells that appeared by 9 weeks have matured into discrete taste buds, but are still scattered throughout your mouth.By birth, the taste buds will be confined to your tongue and palate or roof of your mouth.
Your corpus callosum continues to develop and each hemisphere of your brain continues to grow and develop. They’ll need to learn to start working in tandem very soon!
And finally, your head circumference is around 10 cm or 3.9 inches. Impressive!
Looks like you had an awesome week of developing, my love! I’m so proud of you and excited to keep tracking your progress. But, all that is in the past now…onward and upward, monkey! You are officially 15 weeks today!
Here’s what you look like from the outside this week:
Symptoms: Uterine stretching pains, vivid dreams, frequent urination, sore breasts, lots of energy, some waves of nausea, fetal movement (and lots of it!)
Weight Gain: 0lbs
Here is what babycenter.com has to say about your development this week:
Your growing baby now measures about 4 inches long, crown to rump, and weighs in at about 2 1/2 ounces (about the size of an apple). She’s busy moving amniotic fluid through her nose and upper respiratory tract, which helps the primitive air sacs in her lungs begin to develop. Her legs are growing longer than her arms now, and she can move all of her joints and limbs. Although her eyelids are still fused shut, she can sense light. If you shine a flashlight at your tummy, for instance, she’s likely to move away from the beam. There’s not much for your baby to taste at this point, but she is forming taste buds. Finally, if you have an ultrasound this week, you may be able to find out whether your baby’s a boy or a girl! (Don’t be too disappointed if it remains a mystery, though. Nailing down your baby’s sex depends on the clarity of the picture and on your baby’s position. He or she may be modestly curled up or turned in such a way as to “hide the goods.”)
Congratulations on another week!! Mommy loves you bunches and bunches. Stay safe and warm. 🙂