Didn’t she say she was on birth control
birth control isn't exactly a preventative contraception like you can definitely get pregnant especially if you're ovaluting
birth control pills will only fail if she forgets to take it/skips a day. but if she doesnt, its almost 99% effective. & if im not mistaken most birth control pills stops ovulation.
I got pregnant while having an IUD. She can def get pregnant with bc pills.
so what now she's gonna get pregnant