Date of Last Menstrual Period: Month123456789101112 Date 12345678910111213141516171819202122232425262728293031 Year 2018201920202021202220232024 Due Date, Conception Date Calculation Results: Estimated Fertility Dates : To Estimated Conception Date : First Trimester Ends(12 Weeks) : Second Trimester Ends(27 Weeks):