Weeks 12-40

Back Pain

Last reviewed by medical team: June 2026

🟢 Normal Pregnancy Marker

Why It Happens

Pregnancy hormones relax the ligaments in your pelvis to prepare for birth, which, combined with a shifting center of gravity and weight gain, strains your back muscles.

Safe Home Remedies

Practice good posture and avoid locking your knees.
Wear supportive, low-heeled shoes.
Use a maternity support belt.
Sleep on your side with a pillow between your knees.

⚠️ When to Contact a Doctor

Contact your doctor if back pain is severe, constant, accompanied by fever, or if you experience numbness/tingling in your legs or difficulty urinating.

Related Guides & Resources

Typical Week Ranges

This symptom commonly occurs during these weeks of pregnancy:

Week 12 Week 17 Week 22 Week 27 Week 32 Week 37

Related Conditions

Symptom matches for these prenatal conditions:

✦ Gestational Diabetes ✦ Preeclampsia

Clinical Questions & Answers

Q1: Why does my back hurt more in the third trimester?

Increased baby weight and a forward-shifting center of gravity place extra strain on your lower back.

Q2: Is a heating pad safe for pregnancy back pain?

Yes, but use it on a low setting for no more than 15-20 minutes, and never apply it to your abdomen.

Q3: Can back pain be a sign of labor?

Yes, rhythmic lower back pain can be a sign of back labor, especially if it wraps around to the abdomen.