The calculations are made for one year ahead, beginning with the date of the last menses (period). If you do not have a period (due to miscarriage, childbirth, etc.), the calculation will be made from the current month onwards.
The calculation takes into account the place where the calculation will be used. This "small" calculation can be used on a large area (e.g.country, neighboring countries). If you move countries, it is better to check with us and if necessary, to have a new calculation made.
All data needed for a calculation are strictly confidential (medical confidentiality) and are used for the calculation only.
If you are interested in a calculation, please fill out the application form. After you have submitted your application form, we will send you an e-mail confirmation.
The time of the birth must be entered correctly, e.g. 00h 00min = midnight, 06h 00min = six in the morning, 12h 00min = midday, 23h 59min = one minute before the midnight. Around 8.00, between 9- 10.00.
If previous pregnancy ended with miscarriage/ abortion, provide information that you know (at least required fields). Also, if the labour was terminated by caesarean section or was artificially accelerated, it is necessary to mention. And complications during pregnancy, childbirth, other.
The calculation is send with the instructions, their observation is a precondition of calculation’s reliability.
Answers to other questions can be found in section FAQ.