This is a toughie
You are right in your assumption of mutables on 5th and 8th house cusps, show 'potential' also having
Uranus in 5th can show something unusal or unexpected with giving birth. I have mars (a male planet) showing quick action when giving birth --- shedding peas
whereas having saturn in 5th could suggest a long time in labour.
So if you have sun in 5th could be male, moon = daughter, venus = daughter, mercury not sure if male or female. In what kind of chart? Are we talking Natal, progressions or Solar? gets way more complex when looking a 'outers' to
"Here's the fun part: determine which of your natal placements are male or
female. If your planet or point falls on a Fire (Aries, Leo, Sagittarius)or Air (Gemini, Libra, Aquarius) sign, count it as male. Conversely, if your planet or point falls on an Earth (Taurus, Virgo, Capricorn) or a Water (Cancer, Scorpio, Pisces) sign, count it as female. Do this male/female assignment for all the 14 factors in your chart."
http://www.ehow.com/how_2113168_malefemale-energy-balance-natal-chart.html
GENDER (sex)
"The Sun, the Mars and the Jupiter are male planets while the Moon, theVenus and
Rahu What is Rahu? are female planets. Mercury, Saturn
and Ketu are considered to be impotent planets.
With this information we should think that the Sun is father, Mars is brother and Jupiter is son.
Moon and Venus are females with this it should be clear that Moon is mother and Venus is wife. Further detailed difference will be given at relevant place. It also helps in assessing the gender of a baby prior to its birth by examining the horoscope of the pregnant lady and her husband. It also helps in predicting about father, mother, brother etc. "
http://www.opendb.net/element/17804.php
The chart you posted has ruler of 5th Saggi/Jupiter and jupiter is in detriment (not well placed) in 2nd with all squares which can cause tension but they are to sun and mercury which I think helps expand those energies in the personality--
http://en.wikipedia.org/wiki/Detriment_(astrology)
Are we looking at the same chart here?? mars is in 9th not first. Asteriod child, I read on here or astro that it has nothing to do with childbirth, just someone called 'child'.
I also read that a tale tell sign of pregnanct is the astroid child conjunct sun and it is exactly like that in my chart, so I think there may be some relevancy to the child astroid being an indicator of pregnancy.
Progress what exactly? shows jupiter conj sun in 5th ---progressed jupiter hardly ever moves (like the outers) prog sun is 24' gemini in 11th house.
Prog moon has JUST changed signs into Cappi for next 2.5years BUT is conj N Node in 5th which could be important. So with it being lunar and Moon if I was to guess would say female