Some astrologers think that first breath by the baby is the magic switch that activates this magical concept. Premature births babies often need a ventilator because they can not breath on the own. So they are not taking crucial breathing on there own.

Not including the premature births, about one third of the births in the U.S. are induced labor or c-section. A lot of these may be of convenience (the doctor’s golfing today), a deadline, or an emergency. Now there is the science to freeze embryos for years beyond conception. Science can screw up what would be a "natural" birth time. As a parent, is it not better that medical science can save preemie’s lives? Instead of worrying about a made-up, ancient, unproved and bigoted concept? Not too long ago this may not happen.

If you choose to accept that people have no free will and are programed like computers, then you need a a proper chart. This will set all your stereotypes, so accurate time is vital. No astrologer will use a "what if" birth chart. Moon and Rising signs and the planet positions (real and made up) are very important to the astrologer. They need the whole picture.

There are no theories of astrology only point of view speculation. Use another internet service and they will say something completely different. As for evidence, there is none for how astrology can work, but there is plenty for why it can’t.