Ever since her 2016 birthday, it's been a great year so far for Serena Williams. First of all, she broke Steffi Graf's record for most Grand Slams by a tennis player in the Οpen Εra, which was an amazing feat and something that she coveted for quite some time. A couple of days ago, she also announced her pregnancy. This must be a very fortunate year astrologically and the solar return chart is extremely clear.
The solar return ascendant is conjunct the natal Sun (and SR Sun naturally) and the Sun is the ruler of the natal 5th house (baby). A very strong testimony for pregnancy, Jupiter, natural significator of pregnancy and fertility. is cazimi, in hayz, in strong mutual reception with Saturn and conjunct the ascendant!!! You can't get more fortunate than that. Jupiter is also the ruler of the Lot of Children in 14 Sagittarius (Asc + Saturn - Jupiter). SR Venus (Venus is also a significator of 5th house matters as she is the natural ruler of the 5th house and rejoices there, but also the natural significator of relationships) is conjunct a natal angle and, in particular, the 7th house cusp of relationships (Serena announced her engagement last December).
Career-wise, in the solar return chart, Saturn, the almuten of the ascendant, forms a partill trine with the Moon, ruler of the MC. In general, Serena strongly benefitted from the current Jupiter/Saturn mutual reception. Her Sun (natural significator of professional matters) is in Libra, her Jupiter is Libra (she is currently going through a Jupiter return) and her Saturn is also exalted in Libra. Her Mars in Leo also benefits from both Jupiter and Saturn. Interestingly, Mars is the almuten of the natal 10th house and he is located in the 5th house, thereby indicating that she may have a 5th house (sports) occupation.
Congratulations on the happy news Serena!