Just doing the math 13.333 weeks. Physically it can be sooner or later depending on the growth of the baby and how you are feeling.
The end of the first trimester and beginning of the second is usually characterized by the way you are feeling and baby movement. When you feel the baby move and start having more energy and you start packing on the pounds you have moved into your second trimester. Usually sometime during the 4th month.
2007-01-04 05:37:14
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answer #1
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answered by mailler_mike 3
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You are pregnant for 40 weeks most of the time. If you divide 40 weeks by 3 it is 13.3 weeks. So basically it would be 13 and a half weeks for each trimester. That works out to be about 3 calender months each.
2007-01-04 05:38:36
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answer #2
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answered by ? 6
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3 months. There are usually 9 months in a pregnancy. Tri means three and since there are three trimesters in a pregnancy then each trimester consists of three months.
2007-01-04 05:40:58
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answer #3
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answered by Lov'n IT! 7
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normal pregnancy is 9 months. Therefore if the pregancy is divided into trimesters (tri means 3), you divide 9 by 3.
First trimester is 3 months
Second trimester is the next 3 months
Third trimester is the final 3 months.
2007-01-04 05:33:24
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answer #4
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answered by I scream for ICE CREAM!! 3
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The first 3 months or 12 weeks
2007-01-04 05:35:20
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answer #5
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answered by itsok2smile 1
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the first 3 months week 1 till week 12
your pregnant for 9 months so devide that three times and there are your 3 trimesters
2007-01-04 05:33:51
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answer #6
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answered by Mrs B 3
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3 months
2007-01-04 05:35:38
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answer #7
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answered by BritLdy 5
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It lasts 3 months, or 13 weeks.
Trimester is a word derived from Latin and means 3 months!
2007-01-04 05:43:38
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answer #8
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answered by alternative_be 3
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If I remember correctly it is 3 months for the first 3 months for the second and 3 months for the third.
2007-01-04 05:31:49
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answer #9
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answered by manda 2
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It's 3 months. From week 1 until week 12.
Week 1 begins from the first day of your last menstrual period.
2007-01-04 05:31:40
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answer #10
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answered by baby2007 3
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