How the days are chosen
The rules weigh Venus most: no Venus retrograde, a waxing Moon in a warm sign, easy aspects from Venus and Jupiter to your lights, and no void-of-course Moon or eclipse.
Every day of the next 30 days gets points from fixed rules for your event. Some come from the sky and are the same for everyone: the Moon waxing or waning, the Moon void of course, Mercury or Venus retrograde, eclipses, and the Moon’s sign. Some come from your own chart: whether Venus or Jupiter make an easy aspect, or Mars or Saturn a hard one, to your natal Sun, Moon, Venus or Ascendant.
The days with the most points are your best days, the ones with the fewest are the days to avoid, and each comes with the main reasons. Electional astrology is a traditional practice, not tested science. Use it as one input next to your own judgement, and never to time a medical, legal or safety decision.