Morgan Miller, 33, posted a series of Instagram Stories on Saturday afternoon The photos revealed how she got back into her normal athletic shape after giving birth to twins Asher and Aksel 14 months ago She revealed she suffered from diastasis - a separation of the six pack muscles - during her pregnancy and did physical therapy to treat it while postpartum For her stretch marks, she did microneedling and used a beauty product Bode and Morgan announced the news of her pregnancy with the twins just 14 months after daughter, Emeline, died in a tragic pool accident in 2018