When can ultrasound determine babys sex. My date of birth is 16 November Often, taking antivirals becomes a long-term commitment as a way to prevent liver damage and cancer. I am vidya jothi. Sonogram American Pregnancy Association: When you test positive or reactive for the hepatitis B surface antigen HBsAgit means you are currently infected with hepatitis B. Hi sir, i am 27 yrs male Indian. Hello, Thank you. Should I check their anti hbv lebel. She had been vaccinated and after her third vaccine, we started to have unprotected sex.