How counted the age of the content?

@agusfebi (813)
Indonesia
March 21, 2007 9:13am CST
I was still confused, how the method counted the age of pregnancy?
1 response
birthlady
@birthlady (5609)
• United States
21 Mar 07
There are two ways to count the age of a preborn baby: gestational age and menstrual age. Gestational age is counted from conception. Menstrual age is counted by the last normal menstral period. Pregnancy lasts about 280 days from conception.
agusfebi
@agusfebi (813)
• Indonesia
26 Mar 07
I did not know must answer the reply on the response that you replied, because of so many responses that entered the box discussions I. I could only say thank you very much and thank you before him and thank you for all of his responses.