Fertility Calendar: When will I ovulate?

Information on the fertility calendar

An egg can only be fertilized within a very short period of time, around 24 hours after ovulation. However, since sperm can survive for several days in the female body, the fertile period is usually about 7 days. This starts four days before ovulation, includes the day of ovulation itself and ends two days after ovulation.

Our fertility calendar shows exactly this period of 7 days. Since there is only one ovulation in each cycle, usually only one egg cell gets into the fallopian tube. However, in about 1-2% of cases, two eggs are released during ovulation. If both egg cells are fertilized, dizygotic twins are formed.

Attention: This fertility calendar only calculates mean values ​​and is therefore in no way suitable for contraception. The menstrual cycle, the production of hormones and therefore the maturation of the egg cell and ovulation itself are influenced by many different factors. The fertility calendar can therefore only approximately determine the fertile time and does not represent a guarantee.