"It's insane. I don't even know how to feel because I literally didn't think I'd do this well in my fourth tournament back in 16 months", said the American, who won the 2017 Australian Open while in the early stages of her pregnancy.
"I feel like she's been playing really well".
"I don't want to limit myself", Williams said. "I had a really tough delivery, and I had to have multiple surgeries and nearly didn't make it, to be honest".
"I couldn't even walk to my mailbox, so it's definitely not normal for me to be in a Wimbledon final".
"I can't compare this year with 2016 or 17". Williams won that one for a second consecutive title at the All England Club, before missing the grass-court tournament past year while pregnant.
Ahead of the tournament in London, Williams told "Good Morning America" that her body had changed after the baby.
The second set was quite simply a masterclass in precision groundstrokes from Kerber as she again broke early to seize the advantage.
Serena got the 13th seed on the move. She's one match from making that happen, 10 months after childbirth.
Her 35th Grand Slam semi quickly raced to a conclusion as Williams stepped on the gas, Goerges trying to mix things up but failing in her execution.
She will face either seven-time champion Serena Williams or fellow German Julia Georges in the final. Her mobility is solid, her serve is incredible, and she's been taken to three sets just once all tournament.
Wimbledon, where she was made the No 25 seed despite having fallen outside the top 150 in the world, is only her fourth tournament of 2018 but she has only dropped one set on her way to the semi-finals.
Serena Williams is back, for real.
That title pushed her past Steffi Graf's record of 22 majors in the half-century professional era; Court won some of her Slams during the amateur era. So do I. She's playing so well. Ostapenko's inability to reset and find consistency cost her dear.
Williams needs to win but one more match to claim her eighth Wimbledon title and her 24th Grand Slam title and etch her name alongside Margaret Court's as the winningest Grand Slam champion in history.