do health professionals calculate pregnancy in lunar months and not calender months?

Answer 1

40 weeks (lunar)

Answer 2

A lunar month is four 7 day weeks or 28 days. A calender month could be from 28 to 31 days. It is just the days in that specific named month like Jan. or May.

Answer 3

Quote from: The Thinking Woman's Guide to a Better Birth..By Henci Goer

""You may be surprised to learn that the conventional forty-week pregnancy length is completely arbitrary. It was established by a German obstetrician in the early 1800's. He simply declared that a pregnancy should last ten moon months, that is, ten months of 4 weeks each. However, when researchers in a 1990 study followed a group of healthy, white women, they discovered that pregnancy in first time mothers averaged eight days longer than this, and the average was 3 days longer in women with prior births. " ( 41 Weeks 1 day -first timers, 40 weeks 3 days - with prior births) Hope that answers your question!

Answer 4

yes they calculate in lunar months just like your (most) menestraul cycle that is why it is 40 weeks b/c lunar months are only 28 days slightly shorter than a calendar month

Answer 5

when we talk about pregnacy in months it is lunar as not every month has the same amount of weeks thats why they say 40 weeks and again 1 week either way is fine... as they cant be exact.

Answer 6

40 weeks

Answer 7

it is 9 calender months and 7 days since the 1st day of your last period

Answer 8

No they calculate it on 40 weeks

Answer 9

the health professionals calculate pregnancy in weeks, you are pregnant for approx 40weeks.

Answer 10

Pregnancy is 40 weeks, that is what they go by.