Week 4: visible signs of pregnancy
The bulk of women in the fourth week of pregnancy already know about his condition.Yet, there is also a small number of other pregnant women who are unaware that they originated a new life.Symptoms of pregnancy in the fourth week amplified, and some are beginning to manifest itself only.But do not be upset those women who did not notice absolutely no change occurring in the body.That's okay too.Firstly, not all expectant mothers have highly developed intuition and a heightened sensitivity, and secondly, are not always all or almost all signs of pregnancy Signs of pregnancy: how to avoid wishful thinking .But it is necessary to warn all pregnant women that the fourth week - a week of high-risk for the unborn child, so do not put off a visit to the doctor.
How to calculate gestational age
Many women are confused about the definition of pregnancy.According to the fourth week of the term midwife is calculated from time to time (the first day) of last menstrual period and corresponds to the second week of conception Conception, ovarian cycle, fertilization and genetics baby .If no menstruation four weeks, this eighth week of pregnancy.
What happens to the embryo in the fourth week
In the fourth week of pregnancy, the fetus continues to rapidly grow and develop.The length of the body from head to rump is already two to four millimeters and weighs about two grams.It begins to form a head, which is clearly defined places where later will form the ears, eyes and nostrils.There are the beginnings of arms and legs.The heart of the embryo is already operating at full force and beats at a frequency of 160-200 beats per minute.By the end of the fourth week of the neural tube closes, initiating the formation of the brain.Lays gyrus and valleys formed skull.Blood cells produced by the liver.
- Change psycho-emotional state
Women in this stage of pregnancy become irritable, restless, different mood swings.More and more pronounced unjustified anger on others, especially loved ones.Any little thing can cause tears or laughter.Normal working day turns into torture, the woman appears inexplicable fatigue and drowsiness.
- Strengthening early toxicity
In the fourth week of pregnancy, the phenomenon of early toxicity become more pronounced.Those pregnant women who did not report his symptoms suddenly began to suffer nausea Nausea - there may be problems with the nervous system , sometimes vomiting.Amplifies salivation, fatigue, morning vomiting occurs.To cope with this condition, doctors advised to eat small amounts, five or six times a day, and give preference to solid food (eat less soup, replacing it with the second food and crackers or cookies for snacking).
- Brown spots
If the first weeks of pregnancy have not noticed any changes in their appearance, then in the fourth week, they already are evident.There are pigmented (dark) spot on the forehead, cheeks and chin, dark linea alba (the line that goes from the navel to the pubis), the nipple and areola are brown.
- changes in the mammary glands
Many pregnant only in the fourth week notice changes in the mammary glands.They are sensitive, and in some cases is so painful that it is impossible to touch the breast.In addition, there is a pronounced swelling or engorgement.In some cases, there is only pain and itching in the nipple.
- positive pregnancy test
fourth week - this is the optimal time for a pregnancy test or a repeat, if he had previously been negative.Chorionic gonadotropin is produced in more everything, and that means a greater chance to see the two bars on the test.
- delay menstruation
course, the fourth week of pregnancy marked by such an event, it does not occur in the period of menstruation.In this period of pregnancy it may be missing one or two weeks.