Basic details about 3 weeks pregnant


3 weeks pregnant

Pregnancy lasts an average of 40 weeks, or approximately nine months, from the time of your last menstrual period (LMP). Your due date is calculated by adding 280 days (40 weeks) to the first day of your LMP. You can use our pregnancy calculator to estimate your due date.

During pregnancy, you will experience a wide variety of symptoms. Some women have few or no symptoms early on, while others have all of them. The most common early signs and symptoms of pregnancy might include:

1. Missed period

A woman sitting on a bed

During the first week after the LMP, a woman usually does not experience any symptoms. About 60 to 80 percent of women have a missed period by the time they’re 6 weeks pregnant.

2. Breast changes

A close up of a woman

Swollen, tender breasts are one of the earliest signs of pregnancy. They may grow larger and feel heavier. The area around your nipples, called the areola, may darken.

3. Nausea with or without vomiting

This is also called “morning sickness,” although it can occur at any time of day. It usually starts around the fourth to sixth week of pregnancy and continues through the first trimester. Some women have only a few episodes of nausea, while others have frequent bouts of vomiting throughout their pregnancy.

4. Fatigue

Many women feel exhausted during pregnancy, especially during the first and third trimesters. Your body is working hard to support the growing fetus, so you may need more rest.

5. Frequent urination

About six to eight weeks after your last period, you may find yourself making more frequent trips to the bathroom. This is caused by the hormone human chorionic gonadotropin (hCG), which is produced by the placenta during pregnancy.

6. Bloating

Your uterus is growing and expanding to make room for your developing baby. This can cause your belly to feel full, bloated, and uncomfortable. You may also have gas and indigestion, which can add to the bloating feeling.

7. Food cravings and aversions

You may find that certain foods you used to enjoy are now completely unappealing, or that you’re craving foods you never thought about before. These cravings and aversions can occur at any time during pregnancy.

8. Heartburn

As your uterus grows, it pushes against your stomach, which can cause heartburn. This is most common during the second and third trimesters.

9. Constipation

Hormones produced during pregnancy can slow down your digestive system, leading to constipation. This is most common during the first and third trimesters.

10. Mood swings

You may find yourself feeling more emotional and weepy than usual. This is caused by hormonal changes, and is most common during the first trimester and right before your period.

11. Headaches

Headaches are common during pregnancy, especially during the first and third trimesters. They’re caused by hormonal changes and increased blood volume.

12. Weight gain

You should expect to gain about 25 to 30 pounds (11.5 to 13.6 kilograms) by the end of your second trimester. This weight gain includes the weight of the baby, placenta, amniotic fluid, increased blood volume, and fat stores.

13. Skin changes

Some women experience other skin changes during pregnancy, such as darkening of the skin around their nipples (called the areola) or developing a line down the center of their abdomen (called linea nigra). These changes are caused by hormonal changes and should disappear after pregnancy.

14. Swelling of the ankles, fingers, and face

This happens as your body retains more fluid during pregnancy. You may notice it more in the hot weather or after standing for long periods. It should go away after you rest or put your feet up.

15. Shortness of breath

This is caused by the extra weight you’re carrying and the increased blood volume in your body. It usually gets worse in the second and third trimesters and goes away after you give birth.

16. Dizziness and fainting

These are common during pregnancy, especially in the first trimester when your blood pressure is lower and your blood vessels are dilated. If you feel lightheaded or dizzy, sit or lie down and drink some water.

17. Nosebleeds

Nosebleeds are common during pregnancy, especially in the first trimester when your blood vessels are dilated. If you have a nosebleed, sit up and lean forward to avoid swallowing blood.

18. Pregnancy brain

You may find yourself forgetting things or having trouble concentrating during pregnancy. This is caused by hormonal changes and lack of sleep. It usually goes away after the first trimester.

19. Leg cramps

Leg cramps are common during pregnancy, especially in the third trimester when your baby is growing quickly. To help relieve leg cramps, stretch your legs before bed and take a warm bath.

20. Braxton Hicks contractions

Braxton Hicks contractions are false labor pains that can occur at any time during pregnancy. They’re caused by the uterus contracting to prepare for labor. They’re usually painless and last for a few minutes. If you’re having regular contractions or your water breaks, call your doctor or midwife right away, as this could be early labor.

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