Dear sexologist. My girlfriend said to me. She never do sex before. She is 21 age now. She is till virgin now. If we use condom. How many years she avoid pregnancy without any medicine. She fear that if we did sex use with condom but also she may also pregnant within 6 months. Can she told right. How I will understand her. Guide me. She also fear to inside finger in vagina also. How I tell her.