Hi thegirlinblue,
I am new here too, I am also from Australia, QLD. My partner and I had a baby naturally, without IVF I don't know how else to say that. About two years ago, at the time I had been on hormones estrogen and spiro for about 7 years. I went off of both of those and was given gonadotropins by my endocrinologist for around 5 months before my partner became pregnant.
I found this article to be very helpful and we now have a beautiful baby girl.
http://www.milkjunkies.net/2013/05/trans-women-and-breastfeeding-personal.htmlI like you didn't bank sperm because I was young and did think I would want kids, plus the costs were too high for 18 year old me.
I am not saying that this is the case for everyone as we are all different, but I think that all the talk of being permanently sterile or infertile after x amount of time is based on very little hard research.
I am a scientist with a degree in bio-medical chemistry and I know what good research looks like and as far as I have seen, there hasn't been any case studies done with a large enough sample size to show one way or the other what is and isn't possible after taking hormones for any particular amount of time.
All I can say is that it worked for me and clearly has work for some others too, good luck. I always think that anything is worth trying.
-Em