When is the right time to try conception for a baby boy: some people say on ovulation day, others say 12-24h before ovulation?
After ovulation there is no hope of a conception at all! Moreover, nature does not choose according to any sperm lying around from 2 days previous to the ovulation. If you are trying for a boy you must provide an alkaline environment which will create the right electrical polarity as opposed to acidic and Selnas method gives you those days which this environment in your body is created naturally. Just get a calendar and make love during the favorable days and forget about these old wives tales.