Record-breaking babies Mother facts | 0 comments The shortest interval between two births is 208 days or 6½ months. Jayne Bleackley gave birth to a son on September 3, 1999. She later gave birth to a daughter on March 30, 2000. Fact source Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.