BabyCenter on MSN
Preterm labor: What it means, what to watch for, and when to call
Not all early contractions mean labor. Learn what preterm labor looks like, and when to call your provider to keep you and your baby safe.
Braxton Hicks contractions are uterine contractions that start in early pregnancy. Most don't notice them until sometime in the second or third trimester – and some women never notice them at all.
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