That is not the astrolog! She is his wife
Anyway according to his theory if you know the day that you conceived it is ok. He does'nt ask the exact time. But it is often being night time anyway
The couples who are trying to have a baby usually happen to know the time. Because a woman actually can conceive in 2 days in a month. Also as far as I know he has some friends, phsycians who are able to calculate the conception day. Even fast planets like Moon that stay in the same sign for 2 days that would allow you see the hard angles. I don't know why you need to know the minute. Yes we are also talking about the baby's life in the future that is being determined by the time it is created. The penetration of sperm into the eggs is being affected by the vibes from the universe. That's the theory.
That's also explain why the same charts would not produce the same kind of life. Because the conception chart would decide what will happen in the baby's life.In his theory, mother's chart must have its best transit time. Her Moon, Chiron, and especially North Nodes should not be afflicted. If they afflicted by Saturn it means the baby would die or would not have a healthy life. He noted that the affliction by Mars caused miscarriages.
So the rules are here:
1- Transit or natal Jupiter, Chiron and North Nodes must not be afflicted with each other. Orb tolerance is 3 degrees.
2- Transit Saturn in no way must be in a hard aspect with (conj. and square he says) N. Nodes.
3- Transit Nodes and Natal Nodes mustn't be in hard aspect.
For example, a healthy baby, was born on a day that Transit Jupiter and Moon is passing over natal North Nodes. And natal Moon is not afflicted. Also there is a trine between transit North Node and Natal Chiron. He gathers that the baby will be a healthy and successfull one.
He says if everyone aware of the transits and watch the time carefully there would be no bad or unhealthy people in the world.
Now he gives another sample for an unhealthy baby. He comes from a good family but his chart does not say anything about his illness. But his creation time says a lot Keep in mind that we are talking about his mother's chart)
1- T. Nodes square N. Nodes.
2- T. Mars on North Node, T. Saturn on South Node square N. Moon. Therefore there is a big square here.
3- At the same time T. Jupiter square T. Chiron that also creates negative energy for the conception which is not a good time.
If you have any further question I can ask him.
I hope this will be helpful
Jasmine
Source http://www.astrologyweekly.com/forum/archive/index.php/t-2155.html