There are a number of symptoms like HCG, darkening of the vagina and cervix, Hegar’s sign which is the softening of the uterus isthma and Good ell’s sign, which is the softening of the vaginal portion.

Other symptoms of the pregnancy may include linea Alba – linea nigra pigmentation, which is usually referred to the darkening of the skin in the center of the abdominal area. This happens due to the hormonal changes which usually occur during the middle of the pregnancy period.

Pregnancy diagnosis can usually be accomplished by undergoing various medical tests in which all of them detect the hormones that generate the newly formed placenta. Urine and blood tests can be used to diagnose pregnancy. The main advantage of the blood test is that, it can diagnose pregnancy as early as in the end of the first weeks itself. The usual beginning of the pregnancy is from the time of the last menstrual cycle.

The blood test for pregnancy is more accurate than the urine test and is usually preferred by the medical people. The main disadvantage of the urine test is that, t detects the pregnancy only after 12 to 13 days of the pregnancy only. The primary intention of this test is only to check the state of the embryo and not the age of it.

The blastocyst usually secretes hormones by the name of human choronic gonadotropin. This generally happens in the post menstrual phase. This hormone again stimulates the corpus leutum which is present in the human ovary which continues to produce the progesterone. The main use of this is to create the lining and maintain it which in turn helps in keeping the embryo nourished and healthy.

The lining of the uterus has a gland which swells in respondance to the blastocysts that is triggered to that area. This is done in order to absorb all the vital nutrients that are required for the embryo to nourish properly.

On the other hand, all the signs and symptoms of the pregnancy, some woman won’t realize that they are pregnant till they are in the pregnancy for some time. This is possible due to various reasons like irregular menstrual cycles, taking certain strong medications like painkillers and others. Some of them do not even want to believe that they are pregnant. There are also certain people who do not care if they gain weight.

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