Fetal Development 2nd Trimester Symptoms

The second trimester is the most comfortable period of time for many pregnant women. That's because most of the pregnancy symptoms will disappear completely and pregnant women are able to relax and sleep better at night. However, other, new and more noticeable changes are happening to your body now. Your abdomen expands as the baby continues to grow and before the second trimester is over, you will feel that your baby is starting to move. During the second trimester, the baby is growing very quickly and you can also learn the sex of your baby.

The extreme tiredness and nausea will gradually go away, and you will feel more energetic. The 2nd trimester is the easiest period of pregnancy because you will feel better and more energetic, so you can start planning for your baby's arrival. The second trimester is also the best time to invest in maternity clothes and spread the good news of your pregnancy with your friends and family.

Wondering what happens in the second trimester of pregnancy?

The two major pregnancy hormones Estrogen and Progesterone play a vital role during pregnancy, including triggering fetal development second trimester and common pregnancy symptoms. Continue reading to find out when does the second trimester start, which are the most common symptoms and what to expect!

Common Symptoms In The Second Trimester:


The hormonal changes can cause the tissues lining your nose to swell. This can lead to a stuffy, clogged nose or make your nose bleed more easily during the second trimester. To stop a nosebleed, keep your head up straight and apply pressure to the nostrils for a few minutes or until the bleeding stops. There are also many congestion medications and natural remedies that are safe to use during pregnancy.

Sensitive gums

Many pregnant women will develop swollen, tender gums in the second trimester. The hormonal changes in the body are sending more blood to your gums making them more sensitive. Your gums can also bleed more easily, but they should go back to normal after your baby is born. In order to prevent bleeding gums, you can try using a softer toothbrush and be more gentle when you floss.

Leg cramps

Leg cramps start in the second trimester and may get worse as your pregnancy progresses. Leg cramps can be caused by hormonal changes, weight or shortage of calcium and magnesium. Taking a magnesium and calcium supplements in addition to a prenatal vitamin will help relieve the problem. Also, be sure to eat a healthy, well-balanced diet and avoid getting too tired. Also, avoid standing or sitting with your legs crossed for a long period of time. Take a walk every day and stay hydrated by drinking plenty of water.

Varicose veins/Spider veins

Pregnant women's circulation increases and sends extra blood to the baby. This can cause tiny red veins to appear all over the body.

Fortunately, these spider veins will shrink or disappear completely after pregnancy. Pressure on your legs from your developing baby can slow blood flow to your lower body and cause the veins in your legs to become swollen and blue or purple. These are known as varicose veins and they should fade away after your baby is born.


Hemorrhoids are blood vessels that form around the rectal area.

Unfortunately, they can enlarge during pregnancy because of the increased pressure on them from the growing uterus. Hemorrhoids can be extremely uncomfortable, itchy, and painful, but they will begin to resolve soon after you give birth. If you want to prevent them from forming, first avoid constipation which means you need to eat a high-fiber diet and drink plenty of fluids. If you want to relieve them, soak your bottom in a warm tub for 15 minutes every day or apply an ice pack to the affected area a few times a day.


The extra weight you've gained is starting to put pressure on your back, making it sore and achy. Hormone changes can also cause your ligaments in the pelvic area to relax, which will result in a backache. To ease the pressure on your back, sleep on your side with a pillow tucked between your legs and use a chair to provide good back support. Wear comfortable shoes, improve your posture, exercise regularly and if the pain is still uncomfortable, treat yourself to a nice massage.

Breast enlargement

The breast soreness you experienced during the first trimester should be completely disappeared, but your breasts will continue to grow even in the second trimester. Your body is preparing to feed your new baby, so try wearing a good, supportive bra that will help ease any discomforts.

Hair growth

Many women experience changes in nail and hair growth during pregnancy. Hormonal changes can boost hair growth and thickening. However, you can also notice hair in places you never had it before, including your face, arms, legs, and back. But, don't worry because these changes in hair growth will probably return to normal after the baby is born.

Skin changes

Your skin can undergo all sorts of changes during the second trimester, but all of these changes will disappear after your baby is born. The increased levels of estrogen are responsible for skin darkening in pregnancy. The darkening is usually more noticeable around the nipples, in the armpits, in on the inner thighs, around the belly button and on the face. The increase in the pigment melanin can lead to brown marks on your face, known as the "mask of pregnancy" and a dark line (linea nigra) in the middle of your abdomen. You may also notice thin, red or purple lines on your breasts, abdomen, and thighs. These stretch marks appear because your skin expands to accommodate your growing belly. Fortunately, all of these skin changes should fade away after you deliver.

When does the second trimester begin?

Wondering when does the 2nd trimester start? The second trimester starts in the week 14 of pregnancy and lasts until the end of week 27.

Baby development during the second trimester

Your precious baby is very busy in the second trimester and will do a lot of growing and developing, By the end of the second trimester, you will have a 2-pound baby in your belly.

Month four of pregnancy

At this point in pregnancy, your baby's fingers, toes, eyebrows, eyelids, eyelashes, nails, and hair are well formed. Bones and teeth are becoming denser and your baby can suck his/her thumb, yawn and make faces. The nervous system is starting to function and the reproductive organs and genitalia are fully developed. In month four, your doctor can see on ultrasound if you are having a girl or a boy. You may also hear your baby's heartbeat for the first time.

Month five of pregnancy

Your baby's hair is beginning to grow and a soft fine hair known as lanugo will cover his/her shoulders. This hair is usually shed at the end of the baby's first week of life. Your baby's skin is also covered with a white coating known as vernix caseosa. This will protect the baby's skin from long exposure to the amniotic fluid and this substance is shed before birth.

In month five of pregnancy, you can feel your baby moving, since he/she is developing muscles. The first movement is called quickening.

Wondering when can a fetus hear?

Your baby begins to hear in week 18 of pregnancy. His/her ears will begin to stand out on the sides of his/her head and your baby might begin to hear. By the end of the fifth month, you baby is about 10 inches long and weighs 1/2 to 1 pound.

Month six of pregnancy

By the end of the month six, your baby is about 12 inches long and weighs about 2 pounds. His/her skin is reddish, wrinkled and veins are visible.

The eyelids begin to part and the eyes open. Your baby will respond to sounds by moving or increasing the pulse. At this stage, your baby is growing fast and his/her brain development is intense.