I had sex with my girl freind while period tume,she is virgin and she dont have any disease so is there any possible that i will get hiv, i tested hiv but its negative, after four months should i go for another test
Based on the activity you describe, there is very little risk of acquiring HIV from this encounter. If she truly is a virgin, there is no way she could have contracted HIV from a sexual encounter. The only other means by which she could have HIV is by being born with it, or acquiring it through IV drug use.
In any scenario, the only certain way to know your own status is to get tested. But without any exposure to a detectable level of HIV, you cannot acquire HIV.