Pregnancy Calculator Pregnancy Calculator Down Syndrome Risk Calculator Irish Maternal Fetal Foundation Telephone: 01 293 3984 Fax: 01 293 3971 Email: imff@imff.ie Print Friendly Version Last Menstrual Period Date 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 31 Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year 2012 2013 2014 2015 OR Estimated due date Date 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 31 Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year 2013 2014 2015 2016