According to studies and trials done by Russian cosmobiologist Eugene Jonas, a woman can only conceive when the transiting Sun and Moon are in the same angular relationship(by sign) as the woman's natal Sun and Moon.

In other words, if the woman has the Sun in Leo and the Moon in Sagittarius, she has what is known as a trine(120 degree) relationship between her luminaries. Whenever the Sun and Moon are in trine(by sign) in the sky, this is the best time for her to conceive or become pregnant.

The trine is a harmonious relationship. Other harmonious Sun/Moon relationships(by sign), such as the sextile(60 degrees), Conjunction(0 degrees), or opposition(180 degrees), can also be fertile periods for her. Periods when the transiting Sun and Moon are not harmonious are times when this woman is unlikely to conceive or become pregnant. This harmonious/inharmonious relationship between the Sun occurs about every two and one half days. By learning some basic astrology and having access to an ephemeris(book or list of planetary positions) this woman can know in advance which two and one-half day period to have or not to have child-bearing sex.

Note: a period of up to twelve hours should be allowed for the sperm to reach the ovum and cause conception. Also, any bad or harsh aspects to the luminaries from the other planets should be avoided as much as possible, so that no malformities or other weaknesses occur.

Not only this, but you can also select the sex and general characteristics of the child by timing its conception and birth using astrology.

The sex of the child is determined by the gender of the sign the Moon is in at the time of conception. In other words, If the sign of the transiting Moon at conception is in a masculine sign(Aries, Gemini, Leo, Libra, Sagittarius, or Aquarius), the child will be a male. If the sign of the transiting Moon at conception is in a feminine sign(Taurus, Cancer, Virgo, Scorpio, Capricorn, or Pisces) the child will be a female.

According to the ancient Trutine of Hermes formula, the Moon sign at conception, becomes the Ascendant sign at birth, and the Ascendant sign at conception becomes the Moon sign at birth. The time from conception to birth is usually 273 days or ten lunar months and nine solar months.

In other words, you can pretty much select the Moon and Ascendant signs of your child(as well as the other planets) and therefore have a very good idea of the characterstics of the child you are bringing into the world.

Wouldn't it be great to bring only attractive and successful children into the world?! This requires planned parenthood and a knowledge of astrology. The Ascendant has the greatest influence in terms of physical beauty and is best in a masculine sign, whereas the Moon is usually more successful in a feminine sign. By conceiving only when the transiting Moon is masculine(every two and one-half days) and only when the transiting Ascendant is feminine(roughly every two hours), the world would have a lot more good-looking and successful people in it!