When Does Third Trimester Start: Guide to the Concluding Phase of Pregnancy

third trimester pregnancy Pregnancy woman baby last stage of pregnancy

By Jackelyn Cornejo , Parent Herald Mar 19, 12:30 pm

Photo: (Photo : ADNAN BECI/AFP via Getty Images )

The third trimester typically begins around week 28 of pregnancy and continues until delivery, commonly around week 40.

Approximately, this stage spans from generally week 28 to week 40, equivalent to months 7 to 9 of pregnancy, totaling about 13 weeks.

Third Trimester Feels in the Female Body

During this stage, you might encounter numerous manifestations typical of late pregnancy, such as higher fetal activity, physical changes including a growing belly, and displeasures like nausea, headaches, and abdominal pain.

As nearing labor, it's essential to be aware of signs implying the beginning of active labor, such as the baby dropping, the appearance of bloody show, pelvic pressure, regular and intensifying contractions, or your water breaking.

However, if you notice signs of preterm labor or serious late-pregnancy manifestation like excessive vaginal bleeding, serious abdominal pain, or fever, it's essential to contact the doctor urgently.

While navigating the last trimester, it's recommended to avoid certain activities and substances such as thorough travel, lying on your back for extended periods, exposure to hot tubs or saunas, tremendous exercise in hot circumstances, alcohol consumption, and consumption of raw or undercooked foods.

These safety measures help assure the safety and well-being of both you and the baby during this critical stage of pregnancy.

Changes in Body During the Third Trimester

Abdominal Discomfort: As the baby develops, it occupies more spots in your abdomen, leading to aches and displeasure. Finding an appropriate sleeping position may become difficult, and may encounter challenges taking deep breaths.
Back Pain: The extra weight collected during pregnancy puts pressure on your back, resulting in aching and soreness. Displeasure in your pelvis and hips may also happen due to loosening ligaments in ready for labor. Sustaining good posture, using supportive chairs, and sleeping on side with a pillow between legs can relieve back pain.

Bleeding: Light bleeding towards the edge of pregnancy could signify the beginning of labor or signal severe issues such as placenta previa or placental breaking. Notify your doctor immediately if encountering any bleeding.

Braxton-Hicks Contractions: Moderate contractions, known as Braxton-Hicks contractions, may happen as the body is ready for labor. Though looks like real labor contractions, they are commonly less severe. Contact a doctor if having regular and higher intense contractions.
Breast Changes: Breasts may approximately get bigger during the third trimester, accompanied by colostrum ejaculation, a yellowish fluid that nourishes the baby after birth. Using a supportive bra is essential to avoid back pain.
Vivid Dreams: Hormonal changes during pregnancy often lead to more clear dreams or nightmares, disturbing sleep patterns.

Clumsiness: Heightens weight in the belly area may cause clumsiness and imbalance during the third trimester.

Vaginal Discharge: Surge vaginal release is prevalent in the third trimester. Notify the doctor if the release is excessive enough to drench through panty liners. Towards due date, a thick, vivid , or slightly blood-tinged release may display the start of labor.
Fatigue: Carrying added weight, constant nighttime awakenings, and readiness for childbirth may lead to fatigue. Sustaining a healthy diet, staying active, and taking naps can assist combat exhaustion.
Frequent Urination: Pressure on bladder from the developing baby may result in frequent urination, including nighttime awakenings. Urine discharge during coughing, sneezing, or exercising is also natural.
Heartburn and Constipation: Raised progesterone production during pregnancy can cause heartburn and constipation. Balancing diet and fluid intake can relieve these manifestations.
Hemorrhoids: Enlarged veins around the anus, known as hemorrhoids, may grow due to raised blood flow and pressure during pregnancy. Warm baths and over-the-counter medication can give relaxation.
Sciatica: Nerve discomfort spreading from the lower back to the leg may happen during the third trimester. Yoga, massage, and physical therapy can relieve this pain.

Shortness of Breath: Pressure from the enlarged uterus can make respiring more challenging. Propping up head and shoulders while sleeping and frequent exercise can help control shortness of breath.

Spider and Varicose Veins: Raised blood circulation during pregnancy can cause spider veins and enlarged varicose veins. Elevating your legs and using a support hose can support relief manifestations.
Stretch Marks: Stretch marks may grow on numerous areas of the body due to skin stretching during pregnancy.
Swelling: Moderate swelling, or edema, may happen in the ankles and face due to fluid retention. Elevating feet and looking for medical attention for sudden or serious swelling is suggested.
Weight Gain: Desire for a continuous weight gain of 1/2 to 1 pound per week during the third trimester. Consult doctors regarding relevant weight gain targets based on pre-pregnancy weight. Enormous or insufficient weight gain may require further evaluation.