On 2017 november 17 me and my girlfriend had had sex without protection. She was tatking birth control pills with 21 pills but started a birth control pills with 24 pills two days before the sex. Six days after, she get a positive casual
pregnant test. Then we made a
beta HCG and she get negative. In december 2017 and january 2018 she have periods on the birth control pause. She have SOP. Can she be pregnant?