The first week is the week when you have your menstrual period. The first day of the periods in this week will be used as the reference from which the final due date is calculated.

If you have been planning for pregnancy, you would be looking forward for this week to be over so that you and your mate can make love.

If you are not really pregnant yet, and if you are reading this for information, it is important to note that it is good to be excited in anticipation of getting pregnant. However, it is not common to conceive in the first month. Many couples try a for a few months before getting their good news!