"What Week?" Pregnancy Calculator

"How many weeks are you?" is a common question when you are pregnant. Unless you are a whiz at math, sometimes that is hard to answer off the top of your head. Our handy calculator will figure out when each week of gestation begins, as well as some other nifty items, like when a pregnancy test is likely to show a positive, first heartbeat, quickening (feeling those first movements), and viability (usually around week 24).



  Enter the first day of your last menstrual period.  

Month: Day: Year:





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Disclaimer: The information provided in this section is for the entertainment of our visitors and is only for educational purposes. It is not intended to take the place of the advice and/or care of a qualified healthcare professional. Remember that every woman and every pregnancy is unique, and Lotsofkids.com provides only general information about conception, pregnancy and birth. The information contained in this site should not be used as a substitute for care you should receive from a qualified healthcare professional. If you have questions or concerns about your health or the health of your baby, please seek the advice of your healthcare provider.