Dr. Jonas has tested approach on 30,000 women and found that it worked 99 times out of 100.
It has been estimated that 7 in 10 women conceive a child outside of their regular ovulation cycle.
The success rate of Dr. Jonas method is 98.5% in all age categories
Avoid side effects of birth control pills using our natural contraception calendar. Taking the pill increases a woman's risk of high blood pressure, blood clots, strokes, heart attacks, liver tumors and gallstones.
Dr. Jonas is a two time Nobel prize nominee. In 1970, he was nominated by a committee comprised of doctors and scientists in the United States and in 2000 by a group of doctors based in Argentina.