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Published on: 7/15/2026
Cramps that feel like period pain are common in the third trimester of pregnancy. Most often, these sensations are caused by Braxton Hicks contractions—irregular "practice" tightenings of the uterus. Other common causes include the baby's growth stretching ligaments, pelvic pressure, constipation, or gas. However, painful cramps paired with bleeding, fluid leakage, regular contractions, or reduced fetal movement can signal preterm labor or another complication and warrant immediate medical attention.
Because third-trimester cramping can range from harmless to urgent, understanding your specific symptoms matters. Take a free, instant, online symptom check to help identify possible causes and clarify your next steps with confidence.
Reviewed for medical accuracy: 07/14/2026
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Submit your own QuestionDuring the third trimester of pregnancy, many women experience cramping sensations that are similar to period cramps. These are often due to Braxton Hicks contractions, which are a normal part of pregnancy.
If you're experiencing concerning symptoms during your pregnancy, you can use our free AI symptom checker to help assess your condition before consulting with a healthcare professional.
(References)
Raines DA, & Cooper DB. (2025). Braxton Hicks Contractions. Unknown Journal, 29262073.
Hertz G, Fast A, Feinsilver SH, Albertario CL, Schulman H, & Fein AM. (1992). Sleep in normal late pregnancy. Sleep, 1621025.
Duan YF, Wang J, Jiang S, Bi Y, Pang XH, Yin SA, & Yang ZY. (2018). [Prevalence of calf muscle cramps and influencing factors .... Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine], 29334702.
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