Let's see, all things good come to the family or through the family when Jupiter is conjunct the MC or transiting through the 4th house. It would also help if Mercury was there representing the Virgo side (health).
Your July 3rd baby will probably enjoy the transit of Jupiter through Pisces (trining Cancer), which for the sign on Cancer moves through the 9th house. It should be quite the learning experience for Cancer! FOr a July 3rd in particular, February and March will be the most stimulating, as the Sun, Mercury,Venus, Jupiter, and Uranus are all in Pisces by early March, and four of those, the Sun, Venus, Jupiter and Uranus are in there by February. When both Mercury and Jupiter trine your baby's Sun over the weekend of March 6th and 7th for two to three days, your baby will really enjoy for creative stimulation, a feeling of motion, and intellectual stimulation. That whole period from about the 5th of March leading into about March 15th or 16th while Juptier reamins trine to the Sun should be good for a growth spurt creatively, and for learning and teaching, and travelling.
Your baby may even learn though dreams, so don't be surprised.
Anyone else have a Christmas wish?