Pregnancy calculator This pregnancy calculator is not regular - it is like a handy pregnancy book. Use it as a tool during your pregnancy period. It meant to give you a lot of information about your pregnancy like: due day, weeks that passed, remaining weeks and days, pregnancy days, days until the birth, start date for the second trimester , start date for trimester three. Pregnancy information: Common pregnancy tests you should take as relevant to your week. Pictures, what to expect due