I'm truely sorry you are going through all of this.... its such a hard time .. I basically posted the same post as yours in November last year when i had my first Lap/Dye/DNC done and got told both my tubes were blocked from my local GYNO... i honestly couldnt believe it.. it was awful...So anyway i done alot of reading on blocked tubes etc and decided to go for a HSG.... GYNO didnt want me to do this but i finally got a refferal off him so i could get it done..... at the HSG they couldnt get the dye through my tubes either (actually they couldnt even get it to fill my uterus)
So anyway i decided to go to a FS (which i should have done in the first place as i was already 2+ years TTC) anyway our FS said he'd like us to do another LAP + Hysteroscopy (SP?) so i booked in to have that done and it turned out i didnt have blocked tubes.... actually they were perfect..... i did however have severe endo (which i still have)and no one can figure out how my GYNO missed it as all my organs are stuck together :| ... Apparently while having a lap your tubes can spasm which stops the dye going through your tubes

Anyway bascially all i wanted to say is that a second opinion is always a fantastic idea.... im not saying that the same thing that happened to me (tubes spasm) happened to you... but i guess you just never know

Goodluck with your call with Sydney IVF

xox