I'm pretty sure the Women's zone is the West.

There's a reason they've zoned the hospitals now. Unless you're high risk, they use their limited resources for the women in their catchment. The other 2 tertiary hospitals are Monash and Mercy. They want low-risk women in the low-risk hospitals, so the resources at the tertiary hospitals are spent on the high risks.

ETA - alternatively, if you have PHI or are prepared to pay out of pocket, you could go to Frances Perry.