If An Obstetrician Invented the Calendar, It Would Have 28 Days!

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The normal gestation period for a human being is approximately 280 days, which if a month was comprised of seven-day weeks would make up an even four and thus pregnancies would be 10 months long.
Unfortunately for pregnant women, the creators of the modern-day calendar (credited to both Julius Caesar and Poe Gregory XIII) based it upon a "solar" year that comprises of 365 days that have to be "divided" into reasonably manageable months.
That reasonable management has these months divided not into perfect 28-day months, but some at 30, some at 31 and that lone month of February at 28.
Therefore, the Gregorian and the OB calendars do not synch.
The OB calendar follows perfect 28-day lunar months while the Gregorian uses mostly 30-day months that depict a pregnancy as a nine-month duration.
Using an online due date calculator will allow a pregnant mum to circle a date on a printed calendar.
Menstrual Cycles Follow a Lunar Month: It is no coincidence a woman's menstrual cycle lasts 28 days.
In fact, the word menstrual is derived from the Latin, "menses," meaning "moon.
" This connection goes a very long way to prove that human beings are quite relevant participants deeply connected to the world and its monthly natural spins and to its own satellite.
Since a woman's cycle does appear every lunar month, although through the span of evolution the exact relationship has never been fully explained, it does make sense that the pineal gland in the head is somehow linked to the changes of the moon and all the mysteries surrounding menses.
That calendar month spills beyond a perfect menstrual month of 28 days so what could be a 10-month pregnancy of 28 days per month, has to be interpreted as a pregnancy that lasts a solar-based calendar of nine months.
OB Due Date Calculation: When it comes to doing the maths, conceiving on April 7 will, technically speaking, will have a child born Jan.
1 This takes into consideration mom's last menstrual cycle began March 24 with ovulating taking place two weeks after.
A first baby born in the New Year typically is awarded a treasure trove of products from disposable nappies to tons of formula.
Couples toying with the maths are also having fun trying to arrange for the birth of a child on a specific date.
That due date has been called the "estimated day of confinement" (EDC) since traditionally pregnant women went to bed the day of delivery through birth until fully recovered.
Without using the LMP (last menstrual period), it is impossible to calculate the EDC without using an ultrasound.
With the LMP, it becomes mathematical.
Pregnancy Term Varies Because We Do! The word "term," applied to a completed gestation period spans a nine-month range according to the Gregorian calendar.
Traditionally that gestation period is 40 weeks.
However, there are certain factors that affect the gestation period so a pregnancy term can go anywhere from 38 to 42 weeks.
Some factors include first birth versus additional as well as prenatal care and nutrition.
The question asked about when a baby is due can only be approximated.
An online due date calculator, while providing an approximate date, also helps curb curiosity while aiding in preparing a woman for the various body changes that will occur during a pregnancy term.
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