Adelaide law firm Tindall Gask Bentley is investigating the women's claims, but has not yet determined when a potential class action against the manufacturer, Bayer, will go ahead.
Tindall Gask Bentley spokesmen Andrew Montesi told SBS the firm had been "inundated with inquiries" in the past six months and the investigation process was lengthy.
"The next step for us is talking to Bayer and if talks progress well, negotiations could be kept out of court," he said.
"A class action would occur if both parties can't agree."
Mr Montesi said he was encouraged by the outcomes of similar cases against Bayer in the United States, where high-paying settlements had been reached.
He said the women interested in joining the claim had suffered severe health difficulties including strokes, blood clots and heart attacks after taking the contraceptive pills from the Yasmin line.
"We've got women who have been wheelchair-bound for a year and had to completely rebuild their lives," he said.