My girlfriend had unprotected sex 12 days back. She missed her periods by 2 days so today we visited the gym and she performed trans vaginal usg and there was no pregnancy but she found pcos. We did ghe beta serum hcg and it was negative (1.2 miu). Can the tests be wrong? She has given her crina ncr for periods and if it dsnt happen in 10 days then to do the neta serum hcg again. I am scared. Can she be pregnant? (there was no ejaculation whatsoever, she had taken ipill within 6 hours)