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Medical signs of pregnancy

Signs include the presence of human chorionic gonadotropin (hCG) in the blood and urine, missed menstrual period, implantation bleeding that occurs at implantation of the embryo in the uterus during the third or fourth week after last menstrual period, increased basal body temperature sustained for over two weeks after ovulation, Chadwick's sign (darkening of the cervix, vagina, and vulva), Goodell's sign (softening of the vaginal portion of the cervix), Hegar's sign (softening of the uterus isthmus), and pigmentation of linea alba - Linea nigra, (darkening of the skin in a midline of the abdomen, caused by hyperpigmentation resulting from hormonal changes; it usually appears around the middle of pregnancy).

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Duration of pregnancy

Though pregnancy begins at conception, it is more convenient to date from the first day of a woman's last menstrual period (LMP), or from the date of conception (if known). Starting from one of these dates, the expected date of delivery (EDD) can be calculated. Counting from the LMP, pregnancy usually lasts between 37 and 42 weeks, with the EDD at 40 weeks, 38 weeks after conception. 40 weeks is a little more than nine months and six days, which forms the basis of Naegele's rule for estimating date of delivery. Gestation peroid in humans is around 42 weeks (between 259 and 294 days since LMP).

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World's most expensive Streets

1. Avenue Princesse Grace, Monaco - $ 190,000/Sq m
2. Severn Road, Hong Kong - $ 122,000/Sq m
3. Fifth Avenue, New York - $ 80,000/Sq m
4. Kensington Palace Gardens, London - $ 77,000/Sq m
5. Avenue Montaigne, Paris - $ 54,000/Sq m