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Due Date calculator

Happy application

The first day of your last menstrual period


Expected date of birth:


You are currently on the week of pregnancy

1 trimester
2 trimester
3 trimester

How does theCALCULATOR work?

Check when you will give birth! All you need to do is enter the date of your last menstrual period and our calculator will calculate the approximate date of your baby's birth. You will also see what is the most likely week and trimester of your pregnancy. We will also tell you what to pay attention to in the current pregnancy period.

Remember, however, that the appointed date of birth is only indicative, and our tool is intended to help you prepare for the birth of your baby. For detailed information, contact your doctor.

Your personal assistant

before and after birth

The Happy Baby application is a personal diary of pregnancy and the first months after birth necessary for every parent. We know that pregnancy, childbirth, caring for the development of a newborn and infant is not only a beautiful, but also a very demanding moment for both mother and father.

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Your personal assistant in pregnancy Your personal assistant after birth

Dispose wisely!

Soon, the following labelling will appear on the packaging of many hygiene products, such as sanitary pads, pantyliners, tampons or wet wipes:

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Pregnancy assistantPregnancy assistant Assistant after birth Assistant after birth