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在确定已经怀孕后,每个孕妇都想知道孩子大约在什么时候出生。也就是说,想知道预产期是什么时候。一般来说,胎儿在子宫内生长发育40周(280天左右)成熟。对于这个“瓜熟蒂落”的日期,可以有一些推算办法。按阳历推算记清楚末次月经第1天的日期(月、日),用月份加9(或减3),所得的数是预产期的月份,再用日期加7,所得的就是预产期的那一天。举例:①末次月经为2002年3月5日,月份加
After confirming that she has been pregnant, every pregnant woman wonders when the child is born about. In other words, want to know when the expected date of delivery. In general, the fetus in the womb growth and development of 40 weeks (280 days or so) mature. For this “ripe” date, there may be some projections. Calculate the date of the first day of the last menstrual cycle on the first day of the month according to the Gregorian calendar, and add 9 (or minus 3) to the month. The resulting number is the expected date of birth, and then the date plus 7, the day of the expected date of birth. For example: ① the last menstrual March 5, 2002, the month plus