For starters, the cervix cannot be "penetrated" during sex. There is no way for a penis or sex toy to pass through the External Os because it's just too narrow.
Your body position should allow you to easily reach your cervix. That may be sitting on the toilet, putting one leg up on the edge of the bathtub, or squatting. Reach your finger inside of your vagina. Use the index or middle finger and slowly slide your finger in as far as you can reach, in sort of an upward motion.
A woman has a higher chance of having twins if she conceives with the assistance of fertility treatment or is aged 35 years or over.A woman has a slightly higher chance of having twins if she has a family history of twins. A family history of twins on the motherâs side increases this likelihood more than a family history on the fatherâs side. However, this only applies if conception takes place without the use of fertility treatments.