Braxton Hicks contractions are characterized by tightening of the uterine muscles for about one to two minutes. Unlike contractions that occur during labor, these contractions are generally painless, sporadic, and may occur as early as the second trimester (or as early as 6 weeks, but you don't feel them). In certain cases, though, it's hard to differentiate them from real labor, so if you haven't reached your 37th week and the contractions are getting more frequent, rhythmic, or painful, notify your doctor or midwife immediately as you might be going through pre-term labor. If you are past the 37th week, then there's no need to be alarmed as you're ready to give birth anyway; just wait for your contractions to get more regular and closely-spaced.

In normal cases, though, Braxton Hicks contractions are nothing to worry about. If they make you feel uncomfortable, consider changing positions, taking a warm bath or shower, drinking water, resting, or changing activities.

Read more about Braxton Hicks contractions from American Pregnancy Association.

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