Mackenzie Dern refuses to blame her first UFC loss on the fact she fought just 4 MONTHS after giving birth ... telling TMZ Sports, "I don't regret coming back."
Dern gave birth to her daughter, Moa, on June 9, 2019 -- and somehow managed to get back into fighting shape to take on Amanda Ribas on October 12.
27-year-old Dern (7-1) ultimately lost the fight via unanimous decision -- but now that she's had time to reflect, we asked if she thinks she came back too soon.