What if... Every mention to Padme's pregnancy was cut out. So the audience would be wondering: "Is she pregnant or this is just fat?" Anakin could be the lover, the second guy. She could be married but her husband is a senator and is always busy. Then, when Anakin (hide every mention to Skywalker) starts to kill everybody, he could kill some guy that follows Padme in the background, so it would make sense when Obi-wan says "He betrayed and murdered your father". Padme's last scene would be in the ship on Mustafar.

When Vader says: "I am your father". The audience would be like: "Oh, the lover is the real father."

Or... she could have s*x with Owen Skywalker when Anakin is on Tatooine hunting the Sand People, I don't know...