Week one of pregnancy typically is the first day of your last normal menstruation period, you can use this site to calculate your expected due date.
If you are trying to get pregnant, you can predict when your little one will come along by adding seven days to the first day of your last period, subtracting three months and then adding twelve months. Keep in mind that this is just an estimate and not the exact date.
Your egg in your ovary will leave for the fallopian tube on the 14th and will be available for fertilization for a period of between 12 and 24 hours. It’s difficult to pinpoint the exact moment of conception but as soon as it does occur, your little one’s brain and heart will start growing rapidly.