Pregnancy Due Date CalculatorPreviousNextBabies will come when they are ready but using Newborn Baby’s Pregnancy Due Date Calculator can help give you an estimated due date for your baby based on a standard 40 week pregnancy.First Day of last menstural period:12345678910111213141516171819202122232425262728293031JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember20212022Ususal Number of days in your cycle:12345678910111213141516171819202122232425262728293031