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"If" is a song written by American singer-songwriter David Gates in 1971. Originally popularized by his group Bread, "If" charted at No. 4 on the U.S. Billboard Hot 100 when released as a single in 1971 and No. 6 in Canada. It also spent three weeks at No. 1 on the U.S. Easy Listening chart, [1] and one week at the top of the Canadian AC chart. [2]
"Breed" is a punk rock song that runs for a duration of three minutes and three seconds. [1] [8] According to the sheet music published at Musicnotes.com by BMG Rights Management, it is written in the time signature of common time, with a moderately fast rock tempo of 160 beats per minute. [8] "
The days in which a woman is most fertile can be calculated based on the date of the last menstrual period and the length of a typical menstrual cycle. [4] The few days surrounding ovulation (from approximately days 10 to 18 of a 28-day cycle), constitute the most fertile phase.
A study of a population of French women from 1670 and 1789 shows that those who married at age 20–24 had 7.0 children on average and 3.7% remained childless. Women who married at age 25–29 years had a mean of 5.7 children and 5.0% remained childless. Women who married at 30–34 years had a mean of 4.0 children and 8.2% remained childless. [20]
The mature egg has a diameter of about 0.1 mm (0.0039 in), [29] and is the largest human cell. [30] Which of the two ovaries – left or right – ovulates appears random; [31] no left and right coordinating process is known. [32] Occasionally both ovaries release an egg; if both eggs are fertilized, the result is fraternal twins. [33]
A 115 year old woman living in Italy credits raw eggs and no husbands as the secret to staying alive. According to the New York Times, Emma Morano is, at 115 years and three months, the oldest ...
A woman practicing symptoms-based fertility awareness may choose to observe one sign, two signs, or all three. Many women experience secondary fertility signs that correlate with certain phases of the menstrual cycle, such as abdominal pain and heaviness, back pain, breast tenderness, and mittelschmerz (ovulation pains).
Fertilization occurs when the sperm cell successfully enters and fuses with an egg cell (ovum). The genetic material of the sperm and egg then combine to form the single cell zygote and the germinal stage of development commences. Human embryonic development covers the first eight weeks of development, which have 23 stages, called Carnegie stages.