assuming your story is accurate the chance of an unintentional pregnancy is very very small. ovulation occurs about 2 weeks after menstruation so this was not her "fertile" time. there is still a very remote chance that some of your sperm (it only takes one sperm out of millions) will remain viable if she ovulates early. you are very foolish for not using a condom so don't ever put your girlfriend at risk ever again. condoms also help prevent sexually-transmitted diseases. if your girlfriend was hiv positive than yes you are now at risk as well. if she does not have hiv or aids you are not at risk. if you are going to be having sex in the future please do so safely. use a condom.
is she pregnant? . i am 18 years old. i had sex with my girlfriend yesterday at 5pm(bangladesh gmt+6). it was her period time. her period was started 1day ago. i didn't use a condom. after having sex she taken pregnancy stop pills "no risk" which was suggested to take after 12 hours after having sex. and she taken another pills after 12 hours. but no blooding was held and also her period stopped. now please tell me is she pregnant? and have i possibility of hiv(aids)?