Source: bing.comCongratulations on your pregnancy! It is such an exciting time, filled with anticipation and wonder. But with every passing week, your little one is growing and developing at an incredible rate! Here’s a guide to help you understand what is happening in your baby’s development each week of your pregnancy.
Table of Contents
Week 1-2
During these early weeks, your body is preparing for pregnancy. Your ovary releases an egg, which travels down the fallopian tube. If a sperm fertilizes the egg, the fertilized egg (now called a zygote) will implant in your uterus, and pregnancy begins. At this point, your baby’s gender and genetic makeup are already determined.
Week 3-4
Your baby is now a tiny ball of cells, about the size of a poppy seed. The cells are dividing rapidly and will soon form the placenta (which provides nutrients to your baby), the umbilical cord (which connects your baby to the placenta), and the amniotic sac (which will cushion and protect your baby).
Week 5-6
Your baby’s heart is now beating! The heart is just a tiny tube at this point, but it will soon grow and develop into a complex organ. Your baby’s brain, spinal cord, and other organs are also starting to form.
Week 7-8
Your baby is now about the size of a kidney bean. The fingers and toes are starting to form, and the arms and legs are getting longer. Your baby’s facial features are becoming more defined, and the eyes are now on the front of the face (instead of on the sides).
Week 9-10
Your baby is now officially a fetus! The major organs are all in place, and the bones are beginning to harden. Your baby’s muscles are also developing, and you may be able to see tiny movements during an ultrasound.
Week 11-12
Your baby is now about the size of a lime. The digestive system is starting to function, and your baby may even be able to suck their thumb! The kidneys are also producing urine, which is released into the amniotic fluid.
Week 13-14
Your baby is now about the size of a peach. The vocal cords are forming, and your baby may even make a few sounds (although you won’t be able to hear them yet). Your baby’s skin is still very thin and transparent, but it will soon start to develop pigment.
Week 15-16
Your baby is now about the size of an avocado. They are starting to develop eyebrows and eyelashes, and their hair is starting to grow. Your baby’s limbs are now in proportion to the rest of their body, and they are becoming more coordinated.
Week 17-18
Your baby is now about the size of a sweet potato. They are developing fine hairs (called lanugo) all over their body, which will help regulate their body temperature. Your baby’s ears are now in their final position on the side of their head, and they can hear your heartbeat and voice.
Week 19-20
Your baby is now about the size of a mango. They are starting to develop fat deposits, which will help regulate their body temperature after birth. Your baby’s taste buds are forming, and they may even be able to taste some of the foods you eat!
Week 21-22
Your baby is now about the size of a spaghetti squash. They are developing more and more facial expressions, and their eyelids can now open and close. Your baby’s brain is continuing to develop at an amazing rate, and they are starting to become more aware of their surroundings.
Week 23-24
Your baby is now about the size of a cantaloupe. They are starting to develop more body fat, which will help them maintain their body temperature after birth. Your baby’s skin is also becoming less transparent and more opaque.
Week 25-26
Your baby is now about the size of an eggplant. They are starting to open and close their eyes, and they can now blink. Your baby’s lungs are starting to produce a substance called surfactant, which will help them breathe after birth.
Week 27-28
Your baby is now about the size of a butternut squash. They are starting to gain more weight, and their movements may become more restricted as they run out of room in your uterus. Your baby’s brain is developing at a rapid pace, and they may even be able to dream!
Week 29-30
Your baby is now about the size of a cabbage. They are starting to develop more regular sleep and wake cycles, and you may be able to feel your baby’s hiccups! Your baby’s bones are also starting to harden, but their skull bones will remain soft and pliable to make it easier for them to fit through the birth canal.
Week 31-32
Your baby is now about the size of a coconut. They are starting to develop more fat, which will help them regulate their body temperature after birth. Your baby’s immune system is also starting to develop, and they are producing more and more antibodies.
Week 33-34
Your baby is now about the size of a pineapple. They are starting to settle into a head-down position, getting ready for birth. Your baby’s eyes are now fully formed, and they can distinguish between light and dark.
Week 35-36
Your baby is now about the size of a honeydew melon. They are continuing to gain weight and will soon be ready for birth. Your baby’s brain is continuing to develop, and they are becoming more and more coordinated.
Week 37-38
Your baby is now about the size of a watermelon. They are considered full term and are ready for birth at any time now! Your baby’s head may engage (drop into your pelvis), getting ready for the journey through the birth canal.
Week 39-40
Your baby is now considered overdue if you have not yet gone into labor. They are continuing to gain weight and are now fully developed and ready for life outside the womb. It’s just a matter of time until you get to meet your little one!
Pregnancy is an amazing journey, and it’s incredible to think about all the changes and developments that happen in just nine short months. Remember to take care of yourself and your growing baby, and enjoy this special time!
Frequently Asked Questions About Baby Development Pregnancy Week By Week
Q: What kind of food should I eat during pregnancy? A: You should eat a well-balanced diet that includes plenty of fruits, vegetables, whole grains, and lean proteins. Avoid foods that are high in sugar, salt, or saturated fats.
Q: When should I start feeling my baby move? A: You may start feeling your baby move (called quickening) around 16-20 weeks. However, every pregnancy is different, and some women may not feel movement until later.
Q: Is it safe to exercise during pregnancy? A: Yes, exercise is generally safe during pregnancy. However, you should talk to your healthcare provider about what types of exercise are safe for you and your baby.
Q: What can I do to prepare for labor and delivery? A: Attend childbirth classes, practice relaxation techniques, and talk to your healthcare provider about your birth plan. It’s also a good idea to pack your hospital bag ahead of time.
Q: What should I do if I have concerns about my baby’s development? A: Talk to your healthcare provider if you have any concerns about your baby’s development. They can perform tests and ultrasounds to check on your baby’s health.