My Natural Cycle

We all have unique menstrual cycles with these individual cycles fluctuating from month-to-month. Daysy and Lady-Comp learn about your individual cycle pattern over time by recording, analysing and storing your temperature data– the perfect natural family planning solution, without synthetic hormones. With Daysy and Lady-Comp you can enjoy the same security as with many contraceptive hormonal methods, but without the side effects. Furthermore, the fertility computers do not influence or change your cycle in any way.

Every woman is different, but there are some very basic biological facts that all cycles have in common:

  • Women usually ovulate once per cycle. If on the rare occurrence there is more than one ovulation, this will happen within 24 hours.
  • After ovulation, the ovum can be fertilised for a maximum of 18 hours.
  • After intercourse, male sperm are active and able to fertilise an ovum in the female body for no more than 3 to 5 days.
  • Therefore, during a female menstrual cycle, there are a total of 6 days that a pregnancy can occur, 5 days before ovulation and the day ovulation occurs.

Two primary hormones at play in our menstrual cycle each month: Progesterone and Estrogen. When ovulation occurs, there is an increased production of progesterone (via the corpus luteum) which generates greater heat in the body leading to an increase of the body at rest temperature of more than 0.2 degrees Celsius. This temperature at rest is also called, Basal Body Temperature (BBT).

Daysy and Lady-Comp use a complex algorithm to determine the change in average temperature values between pre-ovulation and post-ovulation. When the change is recognised, your device knows that ovulation has occurred and you are no longer fertile. This information can help you pinpoint the best days to achieve a pregnancy or when to use another form of contraception such as the barrier method. These intelligent fertility monitors are some of the most effective fertility monitors in the world…99.3% effective with a Pearl Index of 0.7.