What is Happening Inside Your Body?
Your breasts have begun producing colostrum, which can leak occasionally. The blood vessels on your breasts are becoming more and more visible.
Your lung capacity is continuing to expand, which is also expanding the size of your rib cage. The circumference of your rib cage will expand by two to three inches during your pregnancy. After you have delivered your baby, your rib cage will return to its previous size.
You may continue to feel soreness in your back and pelvis as your body expands and adjusts.
How Big is Your Baby?
Your baby is about 7 inches from crown to rump and weighs about 10 ½ ounces.
What Does a Fetus Look Like at 21 Weeks?
Video of a baby in the womb at 21 weeks, this is 19 weeks since conception. Click here to watch video
How is Your Baby Developing?
Your baby is actively swallowing amniotic fluid and urinating regularly. Your baby is absorbing small amounts of sugars from the amniotic fluid it is swallowing. Your baby’s primary nutrition is coming through the placenta.
Your baby is also beginning to produce meconium, which consists of cells, amniotic fluid, and digestive juices. It is a dark green or black sticky substance that will be excreted in your baby’s first bowel movement.
Your baby’s bone marrow is beginning to produce blood cells.
Tips for a Healthy Pregnancy
If you haven’t made plans to attend a childbirth class yet, it is a good idea to arrange one. Childbirth classes are very helpful at easing any worries or concerns and are filled with information helping you to prepare for delivery and becoming a parent.
Many women develop varicose veins during pregnancy. It is to some degree a genetic predisposition. Varicose veins develop mainly in the legs, but can occur in the vulva and the rectum.
Pressure from the uterus on the arteries and veins impedes blood flow and can contribute to the formation of varicose veins. To prevent varicose veins, wear support panty hose that is thigh high. Don’t wear socks or hose that end below the knee. Try not to spend extended periods of time on your feet. Wear flat shoes. Always sleep on your side. Don’t cross your legs, and don’t do any high impact exercises. Elevate your feet several times a day to a level higher than your heart.