Congratulations—you're in your third trimester! Weeks 29 through 40 are the last of your pregnancy. These final weeks are an exciting time as you get ready to welcome your baby into the world.

Your Pregnancy Journey

In the first trimester (weeks 1 through 12) you went through major hormonal changes and may have felt very uncomfortable as a result. Every pregnancy is different, but typical first-trimester symptoms include extreme fatigue, nausea, vomiting, cravings, mood swings, heartburn and headaches.

Weeks 13 through 28 make up the second trimester. Your first-trimester symptoms likely decreased or even disappeared. But you may have felt pain and discomfort in your abdomen, lower back and groin as the baby grew. You also may have experienced swelling in your face, fingers and ankles.

Third Trimester: Preparing for Childbirth

Now you're in the final stage: Weeks 29 through 40. By now, the baby's bones are fully formed and their eyes open and close. Although the lungs aren't completely developed yet, your baby is making some breathing movements.

You may notice your baby moving less. That's because they are quickly running out of room. Late in the third trimester, the baby may change to a head-down position and drop lower in your abdomen. The baby is considered full-term (meaning they are ready to be born) at 38 weeks.

Your body is preparing for labor and childbirth now. You might feel more aches and pains, especially in your back, hips and pelvis. You also may have trouble sleeping. Try to sleep on your left side, which is better for circulation, and place a pillow between your knees or behind your back.

Baby's growth puts pressure on your organs. You may feel short of breath or need to go to the bathroom more often than usual. Your breasts may feel tender, and your nipples may leak a watery, pre-milk liquid called colostrum.

Emotionally, the third trimester can be both happy and stressful. Your nesting instinct may take hold. As you're getting your home ready for baby's arrival, remember to take it easy. Make it a priority to get a good night's sleep and take naps during the day if you feel tired.

The Final Few Weeks

As you get closer to your due date, your cervix will stretch and become thinner to prepare for labor and delivery. You and your doctor will discuss signs of labor and what to do when you think labor has begun.

Sources: American Academy of Family Physicians; U.S. Department of Health & Human Services