This calculator will provide a week-by-week display of your pregnancy from the first day of the last menstrual period to the 40 week mark.  This calculator does not allow for varying ovulation times, but is the most common method used in the early days of pregnancy.  To see a more detailed analysis, use the 266-Day Calculator.

Step 1.  Enter the date of the first day of the last menstruation period:

January February March April May June July August Sept. October November December     1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30     1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019           

        This date is on a Sunday Monday Tuesday Wednesday Thursday Friday Saturday

Step 2.              

To see how we calculated the star sign click here.