You have to get your feet under you before making a deep tournament run.
"She's a genuine champion", Barty said.
"It wasn't an easy match", Williams said.
"Honestly, sometimes I think I still have to deal with it".
"I think it's a tough decision. Long enough for you to be able to watch me, cheer me on, and be proud of me".
"I think people have to talk about it more because it's nearly like the fourth trimester, it's part of the pregnancy".
They have played only twice, but not since 2011; Williams won both matches. "It's really special, but that's also why she is who she is". It's about protecting the field too.
Görges's game is based on big serving and her big forehand. I mean if you are forced out of the game for a specific reason, whether it be maternity or injury, you need to be protected. That's hard. And just coming back from the physical of having a baby, at my age (smiling) is never, I think, really easy.
The American broke in the third game of the decider, but missed a decent chance to break again for 4-1.
Another unforced error gave Barty a break in the first game of the second set and there were gasps from the crowd when Williams hammered an overhead way beyond the baseline.
However, the 36-year-old rallied, breaking twice in the second set and then once in the third to win in one hour and 48 minutes.
Wozniacki, who beat Danielle Collins in straight sets yesterday to book her place in the second round, can not meet any earlier than the final thanks to the draw, meaning the Dane is unlikely to be looking for tactical tips.
The four-time semi-finalist and 2010 runner-up next plays either Polona Hercog or Romania or Russian 30th seed Anastasia Pavlyuchenkova.
Third seed and 2016 champion Garbine Muguruza defeated 2009 victor Svetlana Kuznetsova 7-6 (7/0), 6-2. In 2016, Nadal withdrew with an injured left wrist after a pair of easy victories, then claimed every set he played past year en route to the trophy.
John Millman, James Duckworth and Matt Ebden added to the Australian exodus on Tuesday.
Williams fired herself up to turn the tide, though, showing great defence and anticipation to put away a forehand for an immediate break back before letting out a roar after a rasping backhand victor put her a break up at 3-1.
It proved to be decisive - despite Barty's best efforts to overturn the deficit - and the mother-of-one took strode into the next round with a second break at the death.