Millions of TV viewers were treated in the show's series finale on September 16 when they saw the 33-year-old brunette beauty give birth to daughter Penelope, which took place in July, reported Contactmusic.
"Kourtney just loves to pull out her own children," said sister Khloe.
Kourtney was joined in the delivery room by a number of her family members including sisters Kim and Khloe, brother Rob and her and partner Scott Disick's two-year-old son Mason.
Earlier in the series finale, Kim, who is dating rapper Kanye West, had announced that she is freezing her eggs.