Pregnancy Week By Week

Pregnancy is calculated from the first day of your Last Menstrual Periodic (LMP) cycle. Your 1st and 2nd week of pregnancy in fact consist of the time of your last menstrual period, ovulation and fertilization but the actual conception takes place roughly at about the 3rd week. The due date for the delivery is generally computed on the 28 days cyclic period. An ultrasound is a most viable source to know the date of your last menstrual period, which in turn helps you in estimating your due date for the delivery too.

Hence, for the calculations it has been determined that pregnancy basically lasts about 40 weeks which includes from the first day of your last period.

The weeks during your pregnancy are generally categorized into 3 trimesters. The trimesters are grouped as follows:

a) I Trimester   –  The 1st trimester starts from your 1st week till the end of your 12th week

b) II Trimester  –  The 2nd trimester starts from your 13th week till the end of your 26th week                       
               

c) III Trimester –  The 3rd trimester starts from your  27th week till the 40th week  Read More...