I go by this chart.
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27 weeks - Third Trimester!
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27 week
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Second Trimester
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PregnancyCalendar
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27 weeks, 27 weeks pregnant, bump at 27 weeks
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Pregnancy months are counted differently my doctor showed me a chart and the 27 week is the start of the 7 month and the 3rd trimester.
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27weeks Collage
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27 weeks is what trimester