Baby Blood (1990)

The Lohman Circus receives a jaguar from Africa, and cages it. The owner, Lohman, is an abusive man that lives with Yanka, who is a performer that works with the tamer of the circus. During the night, the jaguar explodes and a snake-like creature crawls into her womb and she gets pregnant. She steals Lohman's money and flees from the circus. However, the monster inside her is blood-thirsty and demands human blood to grow. Soon, Yanka becomes a killer to drink the blood of her victims.