Dear all, 1week later i had a sex with one lady of age 45.. and i am 25 male. She is a family women and i am sure she does not have any HIV or other disease. I had a unprotected sex with her. Vaginal sex. But its just less than a minute. With in a minute i let my semen in her vagina and i took out and went to wash. I want to know is there any chance for me to infect with HIV. Kindly help me out. I am so scared. i cant even sleep and eat properly.