Shettles-Methode
Dr. Landrum Shettles proposed that Y-sperm (male) are faster but shorter-lived, while X-sperm (female) are slower but more resilient.
- Für einen Jungen: Nah am Eisprung.
- Für ein Mädchen: 2-4 Tage davor.
Basierend auf der Shettles-Methode.
Dr. Landrum Shettles proposed that Y-sperm (male) are faster but shorter-lived, while X-sperm (female) are slower but more resilient.