Beta window period commonly usse samay ko kaha jata hai jo exposure yaani ki anaavaran ke samay se 3 mahine tak joki sahi samay mana jata hai test lene ke liye. Aur aap yaha padh lijiye: https://lovematters.in/hi/resource/hiv Aap iss baare mein humse vristaar mein charcha humare discussion board "just poocho" par humse kar sakte hai. https://lovematters.in/hi/forum