Pregnancy Calculator

To calculate all data about your pregnancy, enter the 1st day of your last menstrual cycle.

Days passed: 147
Days remained: 133
Week: 21
Calculated date of birth: after 19 weeks

21 weeks pregnant
Length: 29.4 sm
Weight: 522 gr

In your baby’s blood there is a high level of red blood cells: organism starts to produce white blood cells responsible for suppression of infection. There are already taste receptors on its tongue. When drinking the amniotic water, it smacks lips. Child’s digestive system is formed enough to absorb water and sugar from the amniotic fluid.

Select the week of pregnancy to see more information


Normal Pregnancy lasts about 40 weeks since the 1st day of your last menstrual cycle. Have you been already confused? Forget about calculations in your mind and notes in diaries – use our pregnancy calculator to find out the date of birth of your baby.

Using the Pregnancy Calculator helps to calculate the probable conception date, to estimate how long have you been pregnant, to know the fetal age and much more.

All you need is to enter the date of your last menstrual cycle and the amount of menstrual days in the data field, and push the button. On average a menstrual period lasts during 28 days, but it can differ from 22 to 44 days.