Use this calculator to estimate dates for conception, highest fetal risk, organ forming, 1st heartbeat, end of 1st and 2nd trimester, due date etc. during pregnancy. Enter your last menstrual period and calculate these estimated dates.Please provide your valuable comments and ratings to improve this calculator.Don’t forget to check my blog here for latest updates on apps. www.bigideabits.comTags: Health, Calculators, Pregnancy, Due, Date, Due Date, Baby, Heartbeat, Baby Heartbeat, Trimester, Conception, Fetal Risk, Fetal, Womb, Risk