cause infertility. a new study shows not being vaccinate result in dire outcomes. reporter: at seven months pregnant, this is not where kntrice anadumaka expected to be battling covid in an i.c.u. bed wearing an oxygen mask, fighting for her life and her baby s. i would wake up gasping for air. and experiencing that night after night, and i would sit and count my breaths because i didn t know if i would survive the night. reporter: she was unvaccinated. what is going through your mind? to be honest and this part gets me a little emotional i felt irresponsib because i put me and my baby at risk. i will never forgetlet lookr. reporter: dr. emily miller, chief of obstetrics at northwestern memorial hospital in chicago, was her physician. a large portion of her lungs were really destroyed by the virus. reporter: a recent study