The cutoff between normal and low birth weight is about pounds.

The answer is 5.5 pounds. Low birthweight is a duration used to describe babies who are born weighing less than 2,500 grams (5 pounds, 8 ounces). In contrast, the average newborn weighs about 8 pounds.  Babies born with low birthweight may be more likely than babies born at a normal weight to have certain health conditions later in life, including Diabetes and Heart disease.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.

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