First trimester
Implantation
In medicine, pregnancy is defined as beginning when the developing embryo becomes implanted into the endometrial lining of a woman's uterus. In some cases where complications may have arisen, the fertilized egg might implant itself in the fallopian tubes or the cervix, causing an ectopic pregnancy. Most pregnant women do not have any specific signs or symptoms of implantation, although it is not uncommon to experience light bleeding at implantation. Some women will also experience cramping during their first trimester. This is usually of no concern unless there is spotting or bleeding as well. The outer layers of the embryo grow and form a placenta, for the purpose of receiving essential nutrients through the uterine wall, or endometrium. The umbilical cord in a newborn child consists of the remnants of the connection to the placenta. The developing embryo undergoes tremendous growth and changes during the process of embryonic and fetal development. Morning sickness afflicts about seventy percent of all pregnant women, typically only in the first trimester.
Second trimester
Months 4 through 6 of the pregnancy are called the second trimester. Most women feel more energised in this period, and begin to put on weight. The first movement of the fetus, often referred to as "quickening", can be felt, as it begins to form into a recognizable shape. This typically happens by the fourth month. The reproductive organs can be recognized, and can distingush the fetus as male or female.
Third trimester
Final weight gain takes place, and the fetus begins to move regularly. The mother's belly button may "pop" out due to her growing belly. This period of her pregnancy can be uncomfortable, causing symptoms like weak bladder control and back-ache. Movement of the baby becomes stronger and more frequent and the fetus prepares for viability outside the womb through improved brain, eye, and muscle function.
2006-10-25 04:57:42
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answer #1
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answered by alooz 2
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You have 3 trimesters, and a full term pregnancy is 38-40 weeks (roughly 9 months). So you're in the first trimester, around the end of the 3rd month inching to the 4th. So your 20th week is your midway point.
2006-10-25 04:59:51
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answer #2
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answered by Dr. PHILlis (in training) 5
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40 weeks are the duration of a normal pregnancy, divide this into 3 and you will find out the first, second and third trimesters. The first 3 are the most NB as this is the formative years of the fetus. The whole of the fetus is thus developing at a very rapid rate. Enjoy and be kind to yourself don't drink alcohol or smoke orr take any form of drugs and stay away from any childhood diseases that people have esp German Measles
2006-10-25 05:01:50
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answer #3
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answered by tracey s 3
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You are ending the 3rd month and beginning the 4th month. A lunar month is 4 weeks and a calendar month is usually 41/2 weeks. I think that's why it is so confusing to figure how many weeks/months pregnant you are.
2006-10-25 05:01:09
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answer #4
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answered by kat 7
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There are 13 weeks in 3 months so therefore you are 3 months.
2016-05-22 12:57:12
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answer #5
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answered by ? 4
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you are at the begining of your forth month 9 to 13 weeks is your 3rd month.
2006-10-25 04:58:50
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answer #6
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answered by Stephanie O 2
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at 13 weeks pg you are at the end of your 3rd month. From week 14th to week 18th is your 4th month.
2006-10-25 05:07:29
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answer #7
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answered by Baby Ruth habla español 6
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u are in ure second trimester , so ure 3 months and 1 week, remember pregnancy is 10 months long, as its based on 4 week months
best of luck to you
2006-10-25 05:00:16
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answer #8
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answered by theresa d 3
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You are starting your fourth at 13 weeks. Which means you are in your second trimester. Congratulations!
2006-10-25 04:58:28
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answer #9
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answered by jamiasl 3
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You are in your 1 st trimester. Good luck with the pregnancy.
2006-10-25 04:57:24
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answer #10
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answered by Anonymous
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